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1 | package SQL::Translator::Parser::PostgreSQL; |
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2 | |
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3 | =head1 NAME |
4 | |
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5 | SQL::Translator::Parser::PostgreSQL - parser for PostgreSQL |
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6 | |
7 | =head1 SYNOPSIS |
8 | |
9 | use SQL::Translator; |
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10 | use SQL::Translator::Parser::PostgreSQL; |
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11 | |
12 | my $translator = SQL::Translator->new; |
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13 | $translator->parser("SQL::Translator::Parser::PostgreSQL"); |
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14 | |
15 | =head1 DESCRIPTION |
16 | |
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17 | The grammar was started from the MySQL parsers. Here is the description |
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18 | from PostgreSQL: |
19 | |
20 | Table: |
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21 | (http://www.postgresql.org/docs/view.php?version=7.3&idoc=1&file=sql-createtable.html) |
22 | |
23 | CREATE [ [ LOCAL ] { TEMPORARY | TEMP } ] TABLE table_name ( |
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24 | { column_name data_type [ DEFAULT default_expr ] |
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25 | [ column_constraint [, ... ] ] |
26 | | table_constraint } [, ... ] |
27 | ) |
28 | [ INHERITS ( parent_table [, ... ] ) ] |
29 | [ WITH OIDS | WITHOUT OIDS ] |
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30 | |
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31 | where column_constraint is: |
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32 | |
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33 | [ CONSTRAINT constraint_name ] |
34 | { NOT NULL | NULL | UNIQUE | PRIMARY KEY | |
35 | CHECK (expression) | |
36 | REFERENCES reftable [ ( refcolumn ) ] [ MATCH FULL | MATCH PARTIAL ] |
37 | [ ON DELETE action ] [ ON UPDATE action ] } |
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38 | [ DEFERRABLE | NOT DEFERRABLE ] |
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39 | [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ] |
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40 | |
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41 | and table_constraint is: |
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42 | |
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43 | [ CONSTRAINT constraint_name ] |
44 | { UNIQUE ( column_name [, ... ] ) | |
45 | PRIMARY KEY ( column_name [, ... ] ) | |
46 | CHECK ( expression ) | |
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47 | FOREIGN KEY ( column_name [, ... ] ) |
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48 | REFERENCES reftable [ ( refcolumn [, ... ] ) ] |
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49 | [ MATCH FULL | MATCH PARTIAL ] |
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50 | [ ON DELETE action ] [ ON UPDATE action ] } |
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51 | [ DEFERRABLE | NOT DEFERRABLE ] |
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52 | [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ] |
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53 | |
54 | Index: |
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55 | (http://www.postgresql.org/docs/view.php?version=7.3&idoc=1&file=sql-createindex.html) |
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56 | |
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57 | CREATE [ UNIQUE ] INDEX index_name ON table |
58 | [ USING acc_method ] ( column [ ops_name ] [, ...] ) |
59 | [ WHERE predicate ] |
60 | CREATE [ UNIQUE ] INDEX index_name ON table |
61 | [ USING acc_method ] ( func_name( column [, ... ]) [ ops_name ] ) |
62 | [ WHERE predicate ] |
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63 | |
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64 | Alter table: |
65 | |
66 | ALTER TABLE [ ONLY ] table [ * ] |
67 | ADD [ COLUMN ] column type [ column_constraint [ ... ] ] |
68 | ALTER TABLE [ ONLY ] table [ * ] |
69 | ALTER [ COLUMN ] column { SET DEFAULT value | DROP DEFAULT } |
70 | ALTER TABLE [ ONLY ] table [ * ] |
71 | ALTER [ COLUMN ] column SET STATISTICS integer |
72 | ALTER TABLE [ ONLY ] table [ * ] |
73 | RENAME [ COLUMN ] column TO newcolumn |
74 | ALTER TABLE table |
75 | RENAME TO new_table |
76 | ALTER TABLE table |
77 | ADD table_constraint_definition |
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78 | ALTER TABLE [ ONLY ] table |
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79 | DROP CONSTRAINT constraint { RESTRICT | CASCADE } |
80 | ALTER TABLE table |
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81 | OWNER TO new_owner |
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82 | |
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83 | View table: |
84 | |
85 | CREATE [ OR REPLACE ] VIEW view [ ( column name list ) ] AS SELECT query |
86 | |
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87 | =cut |
88 | |
89 | use strict; |
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90 | use warnings; |
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91 | |
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92 | our $VERSION = '1.59'; |
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93 | |
94 | our $DEBUG; |
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95 | $DEBUG = 0 unless defined $DEBUG; |
96 | |
97 | use Data::Dumper; |
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98 | use SQL::Translator::Utils qw/ddl_parser_instance/; |
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99 | |
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100 | use base qw(Exporter); |
101 | our @EXPORT_OK = qw(parse); |
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102 | |
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103 | our $GRAMMAR = <<'END_OF_GRAMMAR'; |
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104 | |
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105 | { my ( %tables, @views, @triggers, $table_order, $field_order, @table_comments) } |
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106 | |
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107 | # |
108 | # The "eofile" rule makes the parser fail if any "statement" rule |
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109 | # fails. Otherwise, the first successful match by a "statement" |
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110 | # won't cause the failure needed to know that the parse, as a whole, |
111 | # failed. -ky |
112 | # |
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113 | startrule : statement(s) eofile { |
114 | { |
115 | tables => \%tables, |
116 | views => \@views, |
117 | triggers => \@triggers, |
118 | } |
119 | } |
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120 | |
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121 | eofile : /^\Z/ |
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122 | |
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123 | statement : create |
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124 | | comment_on_table |
125 | | comment_on_column |
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126 | | comment_on_other |
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127 | | comment |
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128 | | alter |
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129 | | grant |
130 | | revoke |
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131 | | drop |
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132 | | insert |
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133 | | connect |
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134 | | update |
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135 | | set |
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136 | | select |
137 | | copy |
138 | | readin_symbol |
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139 | | commit |
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140 | | <error> |
141 | |
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142 | commit : /commit/i ';' |
143 | |
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144 | connect : /^\s*\\connect.*\n/ |
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145 | |
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146 | set : /set/i /[^;]*/ ';' |
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147 | |
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148 | revoke : /revoke/i WORD(s /,/) /on/i TABLE(?) table_id /from/i NAME(s /,/) ';' |
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149 | { |
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150 | my $table_info = $item{'table_id'}; |
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151 | my $schema_name = $table_info->{'schema_name'}; |
152 | my $table_name = $table_info->{'table_name'}; |
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153 | push @{ $tables{ $table_name }{'permissions'} }, { |
154 | type => 'revoke', |
155 | actions => $item[2], |
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156 | users => $item[7], |
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157 | } |
158 | } |
159 | |
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160 | revoke : /revoke/i WORD(s /,/) /on/i SCHEMA(?) schema_name /from/i NAME(s /,/) ';' |
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161 | { 1 } |
162 | |
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163 | grant : /grant/i WORD(s /,/) /on/i TABLE(?) table_id /to/i NAME(s /,/) ';' |
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164 | { |
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165 | my $table_info = $item{'table_id'}; |
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166 | my $schema_name = $table_info->{'schema_name'}; |
167 | my $table_name = $table_info->{'table_name'}; |
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168 | push @{ $tables{ $table_name }{'permissions'} }, { |
169 | type => 'grant', |
170 | actions => $item[2], |
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171 | users => $item[7], |
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172 | } |
173 | } |
174 | |
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175 | grant : /grant/i WORD(s /,/) /on/i SCHEMA(?) schema_name /to/i NAME(s /,/) ';' |
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176 | { 1 } |
177 | |
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178 | drop : /drop/i /[^;]*/ ';' |
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179 | |
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180 | string : |
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181 | /'(\.|''|[^\\'])*'/ |
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182 | |
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183 | nonstring : /[^;\'"]+/ |
184 | |
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185 | statement_body : string | nonstring |
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186 | |
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187 | insert : /insert/i statement_body(s?) ';' |
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188 | |
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189 | update : /update/i statement_body(s?) ';' |
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190 | |
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191 | # |
192 | # Create table. |
193 | # |
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194 | create : CREATE temporary(?) TABLE table_id '(' create_definition(s? /,/) ')' table_option(s?) ';' |
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195 | { |
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196 | my $table_info = $item{'table_id'}; |
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197 | my $schema_name = $table_info->{'schema_name'}; |
198 | my $table_name = $table_info->{'table_name'}; |
199 | $tables{ $table_name }{'order'} = ++$table_order; |
200 | $tables{ $table_name }{'schema_name'} = $schema_name; |
201 | $tables{ $table_name }{'table_name'} = $table_name; |
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202 | |
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203 | $tables{ $table_name }{'temporary'} = $item[2][0]; |
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204 | |
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205 | if ( @table_comments ) { |
206 | $tables{ $table_name }{'comments'} = [ @table_comments ]; |
207 | @table_comments = (); |
208 | } |
209 | |
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210 | my @constraints; |
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211 | for my $definition ( @{ $item[6] } ) { |
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212 | if ( $definition->{'supertype'} eq 'field' ) { |
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213 | my $field_name = $definition->{'name'}; |
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214 | $tables{ $table_name }{'fields'}{ $field_name } = |
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215 | { %$definition, order => $field_order++ }; |
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216 | |
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217 | for my $constraint ( @{ $definition->{'constraints'} || [] } ) { |
218 | $constraint->{'fields'} = [ $field_name ]; |
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219 | push @{ $tables{ $table_name }{'constraints'} }, |
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220 | $constraint; |
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221 | } |
222 | } |
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223 | elsif ( $definition->{'supertype'} eq 'constraint' ) { |
224 | push @{ $tables{ $table_name }{'constraints'} }, $definition; |
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225 | } |
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226 | elsif ( $definition->{'supertype'} eq 'index' ) { |
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227 | push @{ $tables{ $table_name }{'indices'} }, $definition; |
228 | } |
229 | } |
230 | |
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231 | for my $option ( @{ $item[8] } ) { |
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232 | $tables{ $table_name }{'table_options(s?)'}{ $option->{'type'} } = |
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233 | $option; |
234 | } |
235 | |
236 | 1; |
237 | } |
238 | |
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239 | create : CREATE unique(?) /(index|key)/i index_name /on/i table_id using_method(?) '(' field_name(s /,/) ')' where_predicate(?) ';' |
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240 | { |
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241 | my $table_info = $item{'table_id'}; |
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242 | my $schema_name = $table_info->{'schema_name'}; |
243 | my $table_name = $table_info->{'table_name'}; |
244 | push @{ $tables{ $table_name }{'indices'} }, |
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245 | { |
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246 | name => $item{'index_name'}, |
247 | supertype => $item{'unique'}[0] ? 'constraint' : 'index', |
248 | type => $item{'unique'}[0] ? 'unique' : 'normal', |
249 | fields => $item[9], |
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250 | method => $item{'using_method(?)'}[0], |
251 | where => $item{'where_predicate(?)'}[0], |
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252 | } |
253 | ; |
254 | } |
255 | |
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256 | create : CREATE or_replace(?) temporary(?) VIEW view_id view_fields(?) /AS/i view_target ';' |
257 | { |
258 | push @views, { |
259 | schema_name => $item{view_id}{schema_name}, |
260 | view_name => $item{view_id}{view_name}, |
261 | sql => $item{view_target}, |
262 | fields => $item[6], |
263 | is_temporary => $item[3][0], |
264 | } |
265 | } |
266 | |
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267 | trigger_name : NAME |
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268 | |
269 | trigger_scope : /FOR/i /EACH/i /(ROW|STATEMENT)/i { $return = lc $1 } |
270 | |
271 | before_or_after : /(before|after)/i { $return = lc $1 } |
272 | |
273 | trigger_action : /.+/ |
274 | |
275 | database_event : /insert|update|delete/i |
276 | database_events : database_event(s /OR/) |
277 | |
278 | create : CREATE /TRIGGER/i trigger_name before_or_after database_events /ON/i table_id trigger_scope(?) trigger_action |
279 | { |
280 | # Hack to pass roundtrip tests which have trigger statements terminated by double semicolon |
281 | # and expect the returned data to have the same |
282 | my $action = $item{trigger_action}; |
283 | $action =~ s/;$//; |
284 | |
285 | push @triggers, { |
286 | name => $item{trigger_name}, |
287 | perform_action_when => $item{before_or_after}, |
288 | database_events => $item{database_events}, |
289 | on_table => $item{table_id}{table_name}, |
290 | scope => $item{'trigger_scope(?)'}[0], |
291 | action => $action, |
292 | } |
293 | } |
294 | |
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295 | # |
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296 | # Create anything else (e.g., domain, etc.) |
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297 | # |
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298 | create : CREATE WORD /[^;]+/ ';' |
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299 | { @table_comments = (); } |
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300 | |
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301 | using_method : /using/i WORD { $item[2] } |
302 | |
303 | where_predicate : /where/i /[^;]+/ |
304 | |
305 | create_definition : field |
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306 | | table_constraint |
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307 | | <error> |
308 | |
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309 | comment : /^\s*(?:#|-{2})(.*)\n/ |
310 | { |
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311 | my $comment = $item[1]; |
312 | $comment =~ s/^\s*(#|-*)\s*//; |
313 | $comment =~ s/\s*$//; |
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314 | $return = $comment; |
315 | push @table_comments, $comment; |
316 | } |
317 | |
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318 | comment_on_table : /comment/i /on/i /table/i table_id /is/i comment_phrase ';' |
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319 | { |
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320 | my $table_info = $item{'table_id'}; |
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321 | my $schema_name = $table_info->{'schema_name'}; |
322 | my $table_name = $table_info->{'table_name'}; |
323 | push @{ $tables{ $table_name }{'comments'} }, $item{'comment_phrase'}; |
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324 | } |
325 | |
326 | comment_on_column : /comment/i /on/i /column/i column_name /is/i comment_phrase ';' |
327 | { |
328 | my $table_name = $item[4]->{'table'}; |
329 | my $field_name = $item[4]->{'field'}; |
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330 | if ($tables{ $table_name }{'fields'}{ $field_name } ) { |
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331 | push @{ $tables{ $table_name }{'fields'}{ $field_name }{'comments'} }, |
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332 | $item{'comment_phrase'}; |
333 | } |
334 | else { |
335 | die "No such column as $table_name.$field_name"; |
336 | } |
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337 | } |
338 | |
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339 | comment_on_other : /comment/i /on/i /\w+/ /\w+/ /is/i comment_phrase ';' |
340 | { |
341 | push(@table_comments, $item{'comment_phrase'}); |
342 | } |
343 | |
344 | # [added by cjm 20041019] |
345 | # [TODO: other comment-on types] |
346 | # for now we just have a general mechanism for handling other |
347 | # kinds of comments than table/column; I'm not sure of the best |
348 | # way to incorporate these into the datamodel |
349 | # |
350 | # this is the exhaustive list of types of comment: |
351 | #COMMENT ON DATABASE my_database IS 'Development Database'; |
352 | #COMMENT ON INDEX my_index IS 'Enforces uniqueness on employee id'; |
353 | #COMMENT ON RULE my_rule IS 'Logs UPDATES of employee records'; |
354 | #COMMENT ON SEQUENCE my_sequence IS 'Used to generate primary keys'; |
355 | #COMMENT ON TABLE my_table IS 'Employee Information'; |
356 | #COMMENT ON TYPE my_type IS 'Complex Number support'; |
357 | #COMMENT ON VIEW my_view IS 'View of departmental costs'; |
358 | #COMMENT ON COLUMN my_table.my_field IS 'Employee ID number'; |
359 | #COMMENT ON TRIGGER my_trigger ON my_table IS 'Used for R.I.'; |
360 | # |
361 | # this is tested by test 08 |
362 | |
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363 | column_name : NAME '.' NAME |
364 | { $return = { table => $item[1], field => $item[3] } } |
365 | |
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366 | comment_phrase : /null/i |
367 | { $return = 'NULL' } |
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368 | | SQSTRING |
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369 | |
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370 | field : field_comment(s?) field_name data_type field_meta(s?) field_comment(s?) |
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371 | { |
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372 | my ( $default, @constraints, $is_pk ); |
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373 | my $is_nullable = 1; |
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374 | for my $meta ( @{ $item[4] } ) { |
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375 | if ( $meta->{'type'} eq 'default' ) { |
376 | $default = $meta; |
377 | next; |
378 | } |
379 | elsif ( $meta->{'type'} eq 'not_null' ) { |
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380 | $is_nullable = 0; |
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381 | } |
382 | elsif ( $meta->{'type'} eq 'primary_key' ) { |
383 | $is_pk = 1; |
384 | } |
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385 | |
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386 | push @constraints, $meta if $meta->{'supertype'} eq 'constraint'; |
387 | } |
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388 | |
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389 | my @comments = ( @{ $item[1] }, @{ $item[5] } ); |
390 | |
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391 | $return = { |
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392 | supertype => 'field', |
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393 | name => $item{'field_name'}, |
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394 | data_type => $item{'data_type'}{'type'}, |
395 | size => $item{'data_type'}{'size'}, |
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396 | is_nullable => $is_nullable, |
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397 | default => $default->{'value'}, |
398 | constraints => [ @constraints ], |
399 | comments => [ @comments ], |
400 | is_primary_key => $is_pk || 0, |
401 | is_auto_increment => $item{'data_type'}{'is_auto_increment'}, |
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402 | } |
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403 | } |
404 | | <error> |
405 | |
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406 | field_comment : /^\s*(?:#|-{2})(.*)\n/ |
407 | { |
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408 | my $comment = $item[1]; |
409 | $comment =~ s/^\s*(#|-*)\s*//; |
410 | $comment =~ s/\s*$//; |
411 | $return = $comment; |
412 | } |
413 | |
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414 | field_meta : default_val |
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415 | | column_constraint |
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416 | |
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417 | view_fields : '(' field_name(s /,/) ')' |
418 | { $return = join (',', @{$item[2]} ) } |
419 | |
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420 | column_constraint : constraint_name(?) column_constraint_type deferrable(?) deferred(?) |
421 | { |
422 | my $desc = $item{'column_constraint_type'}; |
423 | my $type = $desc->{'type'}; |
424 | my $fields = $desc->{'fields'} || []; |
425 | my $expression = $desc->{'expression'} || ''; |
426 | |
427 | $return = { |
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428 | supertype => 'constraint', |
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429 | name => $item{'constraint_name'}[0] || '', |
430 | type => $type, |
431 | expression => $type eq 'check' ? $expression : '', |
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432 | deferrable => $item{'deferrable'}, |
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433 | deferred => $item{'deferred'}, |
434 | reference_table => $desc->{'reference_table'}, |
435 | reference_fields => $desc->{'reference_fields'}, |
436 | match_type => $desc->{'match_type'}, |
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437 | on_delete => $desc->{'on_delete'} || $desc->{'on_delete_do'}, |
438 | on_update => $desc->{'on_update'} || $desc->{'on_update_do'}, |
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439 | } |
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440 | } |
441 | |
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442 | constraint_name : /constraint/i NAME { $item[2] } |
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443 | |
444 | column_constraint_type : /not null/i { $return = { type => 'not_null' } } |
445 | | |
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446 | /null/i |
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447 | { $return = { type => 'null' } } |
448 | | |
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449 | /unique/i |
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450 | { $return = { type => 'unique' } } |
451 | | |
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452 | /primary key/i |
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453 | { $return = { type => 'primary_key' } } |
454 | | |
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455 | /check/i '(' /[^)]+/ ')' |
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456 | { $return = { type => 'check', expression => $item[3] } } |
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457 | | |
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458 | /references/i table_id parens_word_list(?) match_type(?) key_action(s?) |
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459 | { |
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460 | my $table_info = $item{'table_id'}; |
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461 | my $schema_name = $table_info->{'schema_name'}; |
462 | my $table_name = $table_info->{'table_name'}; |
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463 | my ( $on_delete, $on_update ); |
464 | for my $action ( @{ $item[5] || [] } ) { |
465 | $on_delete = $action->{'action'} if $action->{'type'} eq 'delete'; |
466 | $on_update = $action->{'action'} if $action->{'type'} eq 'update'; |
467 | } |
468 | |
0efb6e1b |
469 | $return = { |
470 | type => 'foreign_key', |
a20abbda |
471 | reference_table => $table_name, |
0138f7bb |
472 | reference_fields => $item[3][0], |
0efb6e1b |
473 | match_type => $item[4][0], |
100684f3 |
474 | on_delete => $on_delete, |
475 | on_update => $on_update, |
ba1a1626 |
476 | } |
4422e22a |
477 | } |
478 | |
501ed387 |
479 | table_id : schema_qualification(?) NAME { |
330e4686 |
480 | $return = { schema_name => $item[1][0], table_name => $item[2] } |
a20abbda |
481 | } |
482 | |
501ed387 |
483 | view_id : schema_qualification(?) NAME { |
330e4686 |
484 | $return = { schema_name => $item[1][0], view_name => $item[2] } |
485 | } |
486 | |
487 | view_target : /select|with/i /[^;]+/ { |
488 | $return = "$item[1] $item[2]"; |
489 | } |
490 | |
491 | # SELECT views _may_ support outer parens, and we used to produce |
492 | # such sql, although non-standard. Use ugly lookeahead to parse |
493 | view_target : '(' /select/i / [^;]+ (?= \) ) /x ')' { |
494 | $return = "$item[2] $item[3]" |
495 | } |
496 | |
ea93df61 |
497 | view_target_spec : |
330e4686 |
498 | |
501ed387 |
499 | schema_qualification : NAME '.' |
4422e22a |
500 | |
501ed387 |
501 | schema_name : NAME |
34338cb2 |
502 | |
501ed387 |
503 | field_name : NAME |
4422e22a |
504 | |
0efb6e1b |
505 | double_quote: /"/ |
4422e22a |
506 | |
501ed387 |
507 | index_name : NAME |
4422e22a |
508 | |
9da488f2 |
509 | array_indicator : '[' ']' |
510 | { $return = $item[1].$item[2] } |
c96cd4a8 |
511 | |
9da488f2 |
512 | data_type : pg_data_type parens_value_list(?) array_indicator(?) |
ea93df61 |
513 | { |
3022f45b |
514 | my $data_type = $item[1]; |
ba1a1626 |
515 | |
9da488f2 |
516 | $data_type->{type} .= $item[3][0] if $item[3][0]; |
517 | |
0efb6e1b |
518 | # |
519 | # We can deduce some sizes from the data type's name. |
520 | # |
9da488f2 |
521 | if ( my @size = @{$item[2]} ) { |
522 | $data_type->{'size'} = (@size == 1 ? $size[0] : \@size); |
44ffdb73 |
523 | } |
4422e22a |
524 | |
3022f45b |
525 | $return = $data_type; |
4422e22a |
526 | } |
527 | |
0efb6e1b |
528 | pg_data_type : |
50840472 |
529 | /(bigint|int8)/i |
ea93df61 |
530 | { |
531 | $return = { |
50840472 |
532 | type => 'integer', |
b8ea6076 |
533 | size => 20, |
3022f45b |
534 | }; |
535 | } |
0efb6e1b |
536 | | |
1bbd4a2b |
537 | /(smallint|int2)/i |
ea93df61 |
538 | { |
3022f45b |
539 | $return = { |
ea93df61 |
540 | type => 'integer', |
b8ea6076 |
541 | size => 5, |
3022f45b |
542 | }; |
543 | } |
0efb6e1b |
544 | | |
c4c363bb |
545 | /interval/i |
546 | { |
547 | $return = { type => 'interval' }; |
548 | } |
549 | | |
50840472 |
550 | /(integer|int4?)/i # interval must come before this |
ea93df61 |
551 | { |
3022f45b |
552 | $return = { |
ea93df61 |
553 | type => 'integer', |
b8ea6076 |
554 | size => 10, |
3022f45b |
555 | }; |
556 | } |
ea93df61 |
557 | | |
50840472 |
558 | /(real|float4)/i |
ea93df61 |
559 | { |
50840472 |
560 | $return = { |
ea93df61 |
561 | type => 'real', |
b8ea6076 |
562 | size => 10, |
50840472 |
563 | }; |
564 | } |
0efb6e1b |
565 | | |
1bbd4a2b |
566 | /(double precision|float8?)/i |
ea93df61 |
567 | { |
3022f45b |
568 | $return = { |
ea93df61 |
569 | type => 'float', |
b8ea6076 |
570 | size => 20, |
ea93df61 |
571 | }; |
3022f45b |
572 | } |
0efb6e1b |
573 | | |
50840472 |
574 | /(bigserial|serial8)/i |
ea93df61 |
575 | { |
576 | $return = { |
577 | type => 'integer', |
578 | size => 20, |
7eac5e12 |
579 | is_auto_increment => 1, |
3022f45b |
580 | }; |
581 | } |
0efb6e1b |
582 | | |
1bbd4a2b |
583 | /serial4?/i |
ea93df61 |
584 | { |
585 | $return = { |
7eac5e12 |
586 | type => 'integer', |
ea93df61 |
587 | size => 11, |
7eac5e12 |
588 | is_auto_increment => 1, |
3022f45b |
589 | }; |
590 | } |
0efb6e1b |
591 | | |
1bbd4a2b |
592 | /(bit varying|varbit)/i |
ea93df61 |
593 | { |
3022f45b |
594 | $return = { type => 'varbit' }; |
595 | } |
0efb6e1b |
596 | | |
1bbd4a2b |
597 | /character varying/i |
ea93df61 |
598 | { |
3022f45b |
599 | $return = { type => 'varchar' }; |
600 | } |
0efb6e1b |
601 | | |
1bbd4a2b |
602 | /char(acter)?/i |
ea93df61 |
603 | { |
3022f45b |
604 | $return = { type => 'char' }; |
605 | } |
0efb6e1b |
606 | | |
1bbd4a2b |
607 | /bool(ean)?/i |
ea93df61 |
608 | { |
3022f45b |
609 | $return = { type => 'boolean' }; |
610 | } |
0efb6e1b |
611 | | |
1bbd4a2b |
612 | /bytea/i |
ea93df61 |
613 | { |
82968eb9 |
614 | $return = { type => 'bytea' }; |
3022f45b |
615 | } |
0efb6e1b |
616 | | |
84ef6e4e |
617 | / ( timestamp (?:tz)? ) (?: \( \d \) )? ( \s with (?:out)? \s time \s zone )? /ix |
ea93df61 |
618 | { |
b5a782a0 |
619 | $return = { type => 'timestamp' . ($2||'') }; |
3022f45b |
620 | } |
0efb6e1b |
621 | | |
84ef6e4e |
622 | / ( time (?:tz)? ) (?: \( \d \) )? ( \s with (?:out)? \s time \s zone )? /ix |
623 | { |
624 | $return = { type => 'time' . ($2||'') }; |
625 | } |
626 | | |
38a6a4f9 |
627 | /text/i |
ea93df61 |
628 | { |
629 | $return = { |
38a6a4f9 |
630 | type => 'text', |
631 | size => 64_000, |
632 | }; |
633 | } |
634 | | |
84ef6e4e |
635 | /(bit|box|cidr|circle|date|inet|line|lseg|macaddr|money|numeric|decimal|path|point|polygon|varchar|json|hstore|uuid)/i |
ea93df61 |
636 | { |
3022f45b |
637 | $return = { type => $item[1] }; |
638 | } |
0efb6e1b |
639 | |
4422e22a |
640 | parens_value_list : '(' VALUE(s /,/) ')' |
641 | { $item[2] } |
642 | |
efd0c9ec |
643 | |
501ed387 |
644 | parens_word_list : '(' NAME(s /,/) ')' |
0efb6e1b |
645 | { $item[2] } |
4422e22a |
646 | |
0efb6e1b |
647 | field_size : '(' num_range ')' { $item{'num_range'} } |
4422e22a |
648 | |
0efb6e1b |
649 | num_range : DIGITS ',' DIGITS |
4422e22a |
650 | { $return = $item[1].','.$item[3] } |
651 | | DIGITS |
652 | { $return = $item[1] } |
653 | |
f2f71b8e |
654 | table_constraint : comment(s?) constraint_name(?) table_constraint_type deferrable(?) deferred(?) comment(s?) |
0efb6e1b |
655 | { |
656 | my $desc = $item{'table_constraint_type'}; |
657 | my $type = $desc->{'type'}; |
658 | my $fields = $desc->{'fields'}; |
659 | my $expression = $desc->{'expression'}; |
f2f71b8e |
660 | my @comments = ( @{ $item[1] }, @{ $item[-1] } ); |
0efb6e1b |
661 | |
662 | $return = { |
d4056aa7 |
663 | name => $item[2][0] || '', |
b3384294 |
664 | supertype => 'constraint', |
665 | type => $type, |
0efb6e1b |
666 | fields => $type ne 'check' ? $fields : [], |
667 | expression => $type eq 'check' ? $expression : '', |
f04713db |
668 | deferrable => $item{'deferrable'}, |
0efb6e1b |
669 | deferred => $item{'deferred'}, |
670 | reference_table => $desc->{'reference_table'}, |
671 | reference_fields => $desc->{'reference_fields'}, |
840447a5 |
672 | match_type => $desc->{'match_type'}, |
100684f3 |
673 | on_delete => $desc->{'on_delete'} || $desc->{'on_delete_do'}, |
674 | on_update => $desc->{'on_update'} || $desc->{'on_update_do'}, |
f2f71b8e |
675 | comments => [ @comments ], |
ea93df61 |
676 | } |
0efb6e1b |
677 | } |
4422e22a |
678 | |
501ed387 |
679 | table_constraint_type : /primary key/i '(' NAME(s /,/) ')' |
ea93df61 |
680 | { |
0efb6e1b |
681 | $return = { |
682 | type => 'primary_key', |
683 | fields => $item[3], |
684 | } |
685 | } |
686 | | |
501ed387 |
687 | /unique/i '(' NAME(s /,/) ')' |
ea93df61 |
688 | { |
0efb6e1b |
689 | $return = { |
690 | type => 'unique', |
691 | fields => $item[3], |
692 | } |
693 | } |
694 | | |
ea93df61 |
695 | /check/i '(' /[^)]+/ ')' |
0efb6e1b |
696 | { |
697 | $return = { |
698 | type => 'check', |
699 | expression => $item[3], |
700 | } |
701 | } |
702 | | |
501ed387 |
703 | /foreign key/i '(' NAME(s /,/) ')' /references/i table_id parens_word_list(?) match_type(?) key_action(s?) |
0efb6e1b |
704 | { |
3022f45b |
705 | my ( $on_delete, $on_update ); |
706 | for my $action ( @{ $item[9] || [] } ) { |
707 | $on_delete = $action->{'action'} if $action->{'type'} eq 'delete'; |
708 | $on_update = $action->{'action'} if $action->{'type'} eq 'update'; |
709 | } |
ea93df61 |
710 | |
0efb6e1b |
711 | $return = { |
b3384294 |
712 | supertype => 'constraint', |
0efb6e1b |
713 | type => 'foreign_key', |
714 | fields => $item[3], |
a20abbda |
715 | reference_table => $item[6]->{'table_name'}, |
0efb6e1b |
716 | reference_fields => $item[7][0], |
717 | match_type => $item[8][0], |
100684f3 |
718 | on_delete => $on_delete || '', |
719 | on_update => $on_update || '', |
0efb6e1b |
720 | } |
721 | } |
722 | |
ea93df61 |
723 | deferrable : not(?) /deferrable/i |
724 | { |
0efb6e1b |
725 | $return = ( $item[1] =~ /not/i ) ? 0 : 1; |
726 | } |
4422e22a |
727 | |
0efb6e1b |
728 | deferred : /initially/i /(deferred|immediate)/i { $item[2] } |
4422e22a |
729 | |
840447a5 |
730 | match_type : /match/i /partial|full|simple/i { $item[2] } |
0efb6e1b |
731 | |
ea93df61 |
732 | key_action : key_delete |
3022f45b |
733 | | |
734 | key_update |
0efb6e1b |
735 | |
3022f45b |
736 | key_delete : /on delete/i key_mutation |
ea93df61 |
737 | { |
738 | $return = { |
3022f45b |
739 | type => 'delete', |
740 | action => $item[2], |
741 | }; |
742 | } |
743 | |
744 | key_update : /on update/i key_mutation |
ea93df61 |
745 | { |
746 | $return = { |
3022f45b |
747 | type => 'update', |
748 | action => $item[2], |
749 | }; |
750 | } |
751 | |
752 | key_mutation : /no action/i { $return = 'no_action' } |
753 | | |
754 | /restrict/i { $return = 'restrict' } |
755 | | |
756 | /cascade/i { $return = 'cascade' } |
757 | | |
38a6a4f9 |
758 | /set null/i { $return = 'set null' } |
3022f45b |
759 | | |
38a6a4f9 |
760 | /set default/i { $return = 'set default' } |
0efb6e1b |
761 | |
ea93df61 |
762 | alter : alter_table table_id add_column field ';' |
763 | { |
00ef67ea |
764 | my $field_def = $item[4]; |
a20abbda |
765 | $tables{ $item[2]->{'table_name'} }{'fields'}{ $field_def->{'name'} } = { |
00ef67ea |
766 | %$field_def, order => $field_order++ |
767 | }; |
768 | 1; |
769 | } |
770 | |
ea93df61 |
771 | alter : alter_table table_id ADD table_constraint ';' |
772 | { |
a20abbda |
773 | my $table_name = $item[2]->{'table_name'}; |
0012a163 |
774 | my $constraint = $item[4]; |
0012a163 |
775 | push @{ $tables{ $table_name }{'constraints'} }, $constraint; |
00ef67ea |
776 | 1; |
0012a163 |
777 | } |
778 | |
ea93df61 |
779 | alter : alter_table table_id drop_column NAME restrict_or_cascade(?) ';' |
00ef67ea |
780 | { |
a20abbda |
781 | $tables{ $item[2]->{'table_name'} }{'fields'}{ $item[4] }{'drop'} = 1; |
00ef67ea |
782 | 1; |
783 | } |
0012a163 |
784 | |
ea93df61 |
785 | alter : alter_table table_id alter_column NAME alter_default_val ';' |
00ef67ea |
786 | { |
ea93df61 |
787 | $tables{ $item[2]->{'table_name'} }{'fields'}{ $item[4] }{'default'} = |
00ef67ea |
788 | $item[5]->{'value'}; |
789 | 1; |
790 | } |
791 | |
792 | # |
793 | # These will just parse for now but won't affect the structure. - ky |
794 | # |
330e4686 |
795 | alter : alter_table table_id /rename/i /to/i NAME ';' |
00ef67ea |
796 | { 1 } |
797 | |
ea93df61 |
798 | alter : alter_table table_id alter_column NAME SET /statistics/i INTEGER ';' |
00ef67ea |
799 | { 1 } |
800 | |
330e4686 |
801 | alter : alter_table table_id alter_column NAME SET /storage/i storage_type ';' |
00ef67ea |
802 | { 1 } |
803 | |
330e4686 |
804 | alter : alter_table table_id rename_column NAME /to/i NAME ';' |
00ef67ea |
805 | { 1 } |
806 | |
330e4686 |
807 | alter : alter_table table_id DROP /constraint/i NAME restrict_or_cascade ';' |
00ef67ea |
808 | { 1 } |
809 | |
330e4686 |
810 | alter : alter_table table_id /owner/i /to/i NAME ';' |
00ef67ea |
811 | { 1 } |
812 | |
6f28e7ac |
813 | alter : alter_sequence NAME /owned/i /by/i column_name ';' |
814 | { 1 } |
815 | |
00ef67ea |
816 | storage_type : /(plain|external|extended|main)/i |
817 | |
bdf60588 |
818 | temporary : /temp(orary)?\b/i |
330e4686 |
819 | { |
820 | 1; |
821 | } |
3e98f7d9 |
822 | |
330e4686 |
823 | or_replace : /or replace/i |
3e98f7d9 |
824 | |
ea93df61 |
825 | alter_default_val : SET default_val |
826 | { |
827 | $return = { value => $item[2]->{'value'} } |
828 | } |
829 | | DROP DEFAULT |
830 | { |
831 | $return = { value => undef } |
00ef67ea |
832 | } |
00ef67ea |
833 | |
834 | # |
ea93df61 |
835 | # This is a little tricky to get right, at least WRT to making the |
00ef67ea |
836 | # tests pass. The problem is that the constraints are stored just as |
837 | # a list (no name access), and the tests expect the constraints in a |
ea93df61 |
838 | # particular order. I'm going to leave the rule but disable the code |
00ef67ea |
839 | # for now. - ky |
840 | # |
330e4686 |
841 | alter : alter_table table_id alter_column NAME alter_nullable ';' |
00ef67ea |
842 | { |
a20abbda |
843 | # my $table_name = $item[2]->{'table_name'}; |
00ef67ea |
844 | # my $field_name = $item[4]; |
845 | # my $is_nullable = $item[5]->{'is_nullable'}; |
846 | # |
ea93df61 |
847 | # $tables{ $table_name }{'fields'}{ $field_name }{'is_nullable'} = |
00ef67ea |
848 | # $is_nullable; |
849 | # |
850 | # if ( $is_nullable ) { |
851 | # 1; |
852 | # push @{ $tables{ $table_name }{'constraints'} }, { |
853 | # type => 'not_null', |
854 | # fields => [ $field_name ], |
855 | # }; |
856 | # } |
857 | # else { |
ea93df61 |
858 | # for my $i ( |
859 | # 0 .. $#{ $tables{ $table_name }{'constraints'} || [] } |
00ef67ea |
860 | # ) { |
861 | # my $c = $tables{ $table_name }{'constraints'}[ $i ] or next; |
862 | # my $fields = join( '', @{ $c->{'fields'} || [] } ) or next; |
863 | # if ( $c->{'type'} eq 'not_null' && $fields eq $field_name ) { |
864 | # delete $tables{ $table_name }{'constraints'}[ $i ]; |
865 | # last; |
866 | # } |
867 | # } |
868 | # } |
869 | |
870 | 1; |
871 | } |
872 | |
ea93df61 |
873 | alter_nullable : SET not_null |
874 | { |
875 | $return = { is_nullable => 0 } |
00ef67ea |
876 | } |
877 | | DROP not_null |
ea93df61 |
878 | { |
879 | $return = { is_nullable => 1 } |
00ef67ea |
880 | } |
881 | |
882 | not_null : /not/i /null/i |
883 | |
99f3fab6 |
884 | not : /not/i |
885 | |
00ef67ea |
886 | add_column : ADD COLUMN(?) |
887 | |
888 | alter_table : ALTER TABLE ONLY(?) |
889 | |
ea93df61 |
890 | alter_sequence : ALTER SEQUENCE |
6f28e7ac |
891 | |
00ef67ea |
892 | drop_column : DROP COLUMN(?) |
893 | |
894 | alter_column : ALTER COLUMN(?) |
895 | |
896 | rename_column : /rename/i COLUMN(?) |
897 | |
ea93df61 |
898 | restrict_or_cascade : /restrict/i | |
00ef67ea |
899 | /cascade/i |
900 | |
34338cb2 |
901 | # Handle functions that can be called |
ea93df61 |
902 | select : SELECT select_function ';' |
34338cb2 |
903 | { 1 } |
904 | |
905 | # Read the setval function but don't do anything with it because this parser |
906 | # isn't handling sequences |
ea93df61 |
907 | select_function : schema_qualification(?) /setval/i '(' VALUE /,/ VALUE /,/ /(true|false)/i ')' |
34338cb2 |
908 | { 1 } |
909 | |
910 | # Skipping all COPY commands |
911 | copy : COPY WORD /[^;]+/ ';' { 1 } |
912 | { 1 } |
913 | |
914 | # The "\." allows reading in from STDIN but this isn't needed for schema |
915 | # creation, so it is skipped. |
916 | readin_symbol : '\.' |
917 | {1} |
918 | |
00ef67ea |
919 | # |
920 | # End basically useless stuff. - ky |
921 | # |
0012a163 |
922 | |
211e2e90 |
923 | create_table : CREATE TABLE |
0efb6e1b |
924 | |
211e2e90 |
925 | create_index : CREATE /index/i |
4422e22a |
926 | |
501ed387 |
927 | default_val : DEFAULT DEFAULT_VALUE ( '::' data_type )(?) |
ea93df61 |
928 | { |
501ed387 |
929 | my $val = $item[2]; |
a68deb7d |
930 | $val =~ s/^\((\d+)\)\z/$1/; # for example (0)::smallint |
0efb6e1b |
931 | $return = { |
82968eb9 |
932 | supertype => 'constraint', |
933 | type => 'default', |
0efb6e1b |
934 | value => $val, |
935 | } |
4422e22a |
936 | } |
f27085c9 |
937 | | /null/i |
ea93df61 |
938 | { |
f27085c9 |
939 | $return = { |
940 | supertype => 'constraint', |
941 | type => 'default', |
942 | value => 'NULL', |
943 | } |
944 | } |
4422e22a |
945 | |
501ed387 |
946 | DEFAULT_VALUE : VALUE |
947 | | /\w+\(.*\)/ |
948 | | /\w+/ |
949 | | /\(\d+\)/ |
950 | |
4422e22a |
951 | name_with_opt_paren : NAME parens_value_list(s?) |
0efb6e1b |
952 | { $item[2][0] ? "$item[1]($item[2][0][0])" : $item[1] } |
4422e22a |
953 | |
954 | unique : /unique/i { 1 } |
955 | |
956 | key : /key/i | /index/i |
957 | |
501ed387 |
958 | table_option : /inherits/i '(' NAME(s /,/) ')' |
ea93df61 |
959 | { |
0efb6e1b |
960 | $return = { type => 'inherits', table_name => $item[3] } |
961 | } |
962 | | |
963 | /with(out)? oids/i |
964 | { |
965 | $return = { type => $item[1] =~ /out/i ? 'without_oids' : 'with_oids' } |
4422e22a |
966 | } |
967 | |
00ef67ea |
968 | ADD : /add/i |
969 | |
970 | ALTER : /alter/i |
971 | |
211e2e90 |
972 | CREATE : /create/i |
973 | |
00ef67ea |
974 | ONLY : /only/i |
975 | |
976 | DEFAULT : /default/i |
977 | |
978 | DROP : /drop/i |
979 | |
980 | COLUMN : /column/i |
981 | |
0d51cd9e |
982 | TABLE : /table/i |
983 | |
330e4686 |
984 | VIEW : /view/i |
985 | |
34338cb2 |
986 | SCHEMA : /schema/i |
987 | |
0efb6e1b |
988 | SEMICOLON : /\s*;\n?/ |
989 | |
6f28e7ac |
990 | SEQUENCE : /sequence/i |
991 | |
34338cb2 |
992 | SELECT : /select/i |
993 | |
994 | COPY : /copy/i |
995 | |
00ef67ea |
996 | INTEGER : /\d+/ |
997 | |
4422e22a |
998 | WORD : /\w+/ |
999 | |
1000 | DIGITS : /\d+/ |
1001 | |
1002 | COMMA : ',' |
1003 | |
00ef67ea |
1004 | SET : /set/i |
1005 | |
501ed387 |
1006 | NAME : DQSTRING |
4422e22a |
1007 | | /\w+/ |
501ed387 |
1008 | |
fd498bb0 |
1009 | DQSTRING : '"' <skip: ''> /((?:[^"]|"")+)/ '"' |
1010 | { ($return = $item[3]) =~ s/""/"/g; } |
501ed387 |
1011 | |
fd498bb0 |
1012 | SQSTRING : "'" <skip: ''> /((?:[^']|'')*)/ "'" |
1013 | { ($return = $item[3]) =~ s/''/'/g } |
501ed387 |
1014 | |
1015 | VALUE : /[-+]?\d*\.?\d+(?:[eE]\d+)?/ |
1016 | | SQSTRING |
f04713db |
1017 | | /null/i |
4422e22a |
1018 | { 'NULL' } |
1019 | |
bdf60588 |
1020 | END_OF_GRAMMAR |
4422e22a |
1021 | |
4422e22a |
1022 | sub parse { |
1023 | my ( $translator, $data ) = @_; |
4422e22a |
1024 | |
bdf60588 |
1025 | # Enable warnings within the Parse::RecDescent module. |
1026 | local $::RD_ERRORS = 1 unless defined $::RD_ERRORS; # Make sure the parser dies when it encounters an error |
1027 | local $::RD_WARN = 1 unless defined $::RD_WARN; # Enable warnings. This will warn on unused rules &c. |
1028 | local $::RD_HINT = 1 unless defined $::RD_HINT; # Give out hints to help fix problems. |
4422e22a |
1029 | |
bdf60588 |
1030 | local $::RD_TRACE = $translator->trace ? 1 : undef; |
1031 | local $DEBUG = $translator->debug; |
1032 | |
1033 | my $parser = ddl_parser_instance('PostgreSQL'); |
4422e22a |
1034 | |
1035 | my $result = $parser->startrule($data); |
1036 | die "Parse failed.\n" unless defined $result; |
1037 | warn Dumper($result) if $DEBUG; |
82968eb9 |
1038 | |
1039 | my $schema = $translator->schema; |
ea93df61 |
1040 | my @tables = sort { |
330e4686 |
1041 | ( $result->{tables}{ $a }{'order'} || 0 ) <=> ( $result->{tables}{ $b }{'order'} || 0 ) |
1042 | } keys %{ $result->{tables} }; |
82968eb9 |
1043 | |
1044 | for my $table_name ( @tables ) { |
330e4686 |
1045 | my $tdata = $result->{tables}{ $table_name }; |
ea93df61 |
1046 | my $table = $schema->add_table( |
a20abbda |
1047 | #schema => $tdata->{'schema_name'}, |
1048 | name => $tdata->{'table_name'}, |
d7fcc1d6 |
1049 | ) or die "Couldn't create table '$table_name': " . $schema->error; |
82968eb9 |
1050 | |
3e98f7d9 |
1051 | $table->extra(temporary => 1) if $tdata->{'temporary'}; |
1052 | |
a82fa2cb |
1053 | $table->comments( $tdata->{'comments'} ); |
1054 | |
ea93df61 |
1055 | my @fields = sort { |
1056 | $tdata->{'fields'}{ $a }{'order'} |
82968eb9 |
1057 | <=> |
429f639c |
1058 | $tdata->{'fields'}{ $b }{'order'} |
82968eb9 |
1059 | } keys %{ $tdata->{'fields'} }; |
1060 | |
1061 | for my $fname ( @fields ) { |
1062 | my $fdata = $tdata->{'fields'}{ $fname }; |
00ef67ea |
1063 | next if $fdata->{'drop'}; |
82968eb9 |
1064 | my $field = $table->add_field( |
1065 | name => $fdata->{'name'}, |
1066 | data_type => $fdata->{'data_type'}, |
1067 | size => $fdata->{'size'}, |
1068 | default_value => $fdata->{'default'}, |
7eac5e12 |
1069 | is_auto_increment => $fdata->{'is_auto_increment'}, |
00ef67ea |
1070 | is_nullable => $fdata->{'is_nullable'}, |
a82fa2cb |
1071 | comments => $fdata->{'comments'}, |
82968eb9 |
1072 | ) or die $table->error; |
1073 | |
1074 | $table->primary_key( $field->name ) if $fdata->{'is_primary_key'}; |
1075 | |
1076 | for my $cdata ( @{ $fdata->{'constraints'} } ) { |
1077 | next unless $cdata->{'type'} eq 'foreign_key'; |
1078 | $cdata->{'fields'} ||= [ $field->name ]; |
1079 | push @{ $tdata->{'constraints'} }, $cdata; |
1080 | } |
1081 | } |
1082 | |
1083 | for my $idata ( @{ $tdata->{'indices'} || [] } ) { |
9c05d806 |
1084 | my @options = (); |
1085 | push @options, { using => $idata->{'method'} } if $idata->{method}; |
1086 | push @options, { where => $idata->{'where'} } if $idata->{where}; |
82968eb9 |
1087 | my $index = $table->add_index( |
9c05d806 |
1088 | name => $idata->{'name'}, |
1089 | type => uc $idata->{'type'}, |
1090 | fields => $idata->{'fields'}, |
1091 | options => \@options |
3406fd5b |
1092 | ) or die $table->error . ' ' . $table->name; |
82968eb9 |
1093 | } |
1094 | |
1095 | for my $cdata ( @{ $tdata->{'constraints'} || [] } ) { |
1096 | my $constraint = $table->add_constraint( |
1097 | name => $cdata->{'name'}, |
1098 | type => $cdata->{'type'}, |
1099 | fields => $cdata->{'fields'}, |
1100 | reference_table => $cdata->{'reference_table'}, |
1101 | reference_fields => $cdata->{'reference_fields'}, |
1102 | match_type => $cdata->{'match_type'} || '', |
100684f3 |
1103 | on_delete => $cdata->{'on_delete'} || $cdata->{'on_delete_do'}, |
1104 | on_update => $cdata->{'on_update'} || $cdata->{'on_update_do'}, |
b3384294 |
1105 | expression => $cdata->{'expression'}, |
1106 | ) or die "Can't add constraint of type '" . |
ea93df61 |
1107 | $cdata->{'type'} . "' to table '" . $table->name . |
b3384294 |
1108 | "': " . $table->error; |
82968eb9 |
1109 | } |
1110 | } |
1111 | |
330e4686 |
1112 | for my $vinfo (@{$result->{views}}) { |
1113 | my $sql = $vinfo->{sql}; |
1114 | $sql =~ s/\A\s+|\s+\z//g; |
1115 | my $view = $schema->add_view ( |
1116 | name => $vinfo->{view_name}, |
1117 | sql => $sql, |
1118 | fields => $vinfo->{fields}, |
1119 | ); |
1120 | |
1121 | $view->extra ( temporary => 1 ) if $vinfo->{is_temporary}; |
1122 | } |
1123 | |
c96cd4a8 |
1124 | for my $trigger (@{ $result->{triggers} }) { |
1125 | $schema->add_trigger( %$trigger ); |
1126 | } |
1127 | |
f62bd16c |
1128 | return 1; |
4422e22a |
1129 | } |
1130 | |
1131 | 1; |
1132 | |
82968eb9 |
1133 | # ------------------------------------------------------------------- |
1134 | # Rescue the drowning and tie your shoestrings. |
ea93df61 |
1135 | # Henry David Thoreau |
82968eb9 |
1136 | # ------------------------------------------------------------------- |
4422e22a |
1137 | |
1138 | =pod |
1139 | |
0efb6e1b |
1140 | =head1 AUTHORS |
4422e22a |
1141 | |
11ad2df9 |
1142 | Ken Y. Clark E<lt>kclark@cpan.orgE<gt>, |
b8ea6076 |
1143 | Allen Day E<lt>allenday@ucla.eduE<gt>. |
4422e22a |
1144 | |
1145 | =head1 SEE ALSO |
1146 | |
1147 | perl(1), Parse::RecDescent. |
1148 | |
1149 | =cut |