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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], |
250 | method => $item{'using_method'}[0], |
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251 | } |
252 | ; |
253 | } |
254 | |
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255 | create : CREATE or_replace(?) temporary(?) VIEW view_id view_fields(?) /AS/i view_target ';' |
256 | { |
257 | push @views, { |
258 | schema_name => $item{view_id}{schema_name}, |
259 | view_name => $item{view_id}{view_name}, |
260 | sql => $item{view_target}, |
261 | fields => $item[6], |
262 | is_temporary => $item[3][0], |
263 | } |
264 | } |
265 | |
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266 | trigger_name : NAME |
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267 | |
268 | trigger_scope : /FOR/i /EACH/i /(ROW|STATEMENT)/i { $return = lc $1 } |
269 | |
270 | before_or_after : /(before|after)/i { $return = lc $1 } |
271 | |
272 | trigger_action : /.+/ |
273 | |
274 | database_event : /insert|update|delete/i |
275 | database_events : database_event(s /OR/) |
276 | |
277 | create : CREATE /TRIGGER/i trigger_name before_or_after database_events /ON/i table_id trigger_scope(?) trigger_action |
278 | { |
279 | # Hack to pass roundtrip tests which have trigger statements terminated by double semicolon |
280 | # and expect the returned data to have the same |
281 | my $action = $item{trigger_action}; |
282 | $action =~ s/;$//; |
283 | |
284 | push @triggers, { |
285 | name => $item{trigger_name}, |
286 | perform_action_when => $item{before_or_after}, |
287 | database_events => $item{database_events}, |
288 | on_table => $item{table_id}{table_name}, |
289 | scope => $item{'trigger_scope(?)'}[0], |
290 | action => $action, |
291 | } |
292 | } |
293 | |
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294 | # |
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295 | # Create anything else (e.g., domain, etc.) |
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296 | # |
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297 | create : CREATE WORD /[^;]+/ ';' |
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298 | { @table_comments = (); } |
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299 | |
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300 | using_method : /using/i WORD { $item[2] } |
301 | |
302 | where_predicate : /where/i /[^;]+/ |
303 | |
304 | create_definition : field |
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305 | | table_constraint |
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306 | | <error> |
307 | |
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308 | comment : /^\s*(?:#|-{2})(.*)\n/ |
309 | { |
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310 | my $comment = $item[1]; |
311 | $comment =~ s/^\s*(#|-*)\s*//; |
312 | $comment =~ s/\s*$//; |
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313 | $return = $comment; |
314 | push @table_comments, $comment; |
315 | } |
316 | |
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317 | comment_on_table : /comment/i /on/i /table/i table_id /is/i comment_phrase ';' |
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318 | { |
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319 | my $table_info = $item{'table_id'}; |
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320 | my $schema_name = $table_info->{'schema_name'}; |
321 | my $table_name = $table_info->{'table_name'}; |
322 | push @{ $tables{ $table_name }{'comments'} }, $item{'comment_phrase'}; |
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323 | } |
324 | |
325 | comment_on_column : /comment/i /on/i /column/i column_name /is/i comment_phrase ';' |
326 | { |
327 | my $table_name = $item[4]->{'table'}; |
328 | my $field_name = $item[4]->{'field'}; |
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329 | if ($tables{ $table_name }{'fields'}{ $field_name } ) { |
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330 | push @{ $tables{ $table_name }{'fields'}{ $field_name }{'comments'} }, |
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331 | $item{'comment_phrase'}; |
332 | } |
333 | else { |
334 | die "No such column as $table_name.$field_name"; |
335 | } |
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336 | } |
337 | |
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338 | comment_on_other : /comment/i /on/i /\w+/ /\w+/ /is/i comment_phrase ';' |
339 | { |
340 | push(@table_comments, $item{'comment_phrase'}); |
341 | } |
342 | |
343 | # [added by cjm 20041019] |
344 | # [TODO: other comment-on types] |
345 | # for now we just have a general mechanism for handling other |
346 | # kinds of comments than table/column; I'm not sure of the best |
347 | # way to incorporate these into the datamodel |
348 | # |
349 | # this is the exhaustive list of types of comment: |
350 | #COMMENT ON DATABASE my_database IS 'Development Database'; |
351 | #COMMENT ON INDEX my_index IS 'Enforces uniqueness on employee id'; |
352 | #COMMENT ON RULE my_rule IS 'Logs UPDATES of employee records'; |
353 | #COMMENT ON SEQUENCE my_sequence IS 'Used to generate primary keys'; |
354 | #COMMENT ON TABLE my_table IS 'Employee Information'; |
355 | #COMMENT ON TYPE my_type IS 'Complex Number support'; |
356 | #COMMENT ON VIEW my_view IS 'View of departmental costs'; |
357 | #COMMENT ON COLUMN my_table.my_field IS 'Employee ID number'; |
358 | #COMMENT ON TRIGGER my_trigger ON my_table IS 'Used for R.I.'; |
359 | # |
360 | # this is tested by test 08 |
361 | |
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362 | column_name : NAME '.' NAME |
363 | { $return = { table => $item[1], field => $item[3] } } |
364 | |
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365 | comment_phrase : /null/i |
366 | { $return = 'NULL' } |
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367 | | SQSTRING |
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368 | |
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369 | field : field_comment(s?) field_name data_type field_meta(s?) field_comment(s?) |
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370 | { |
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371 | my ( $default, @constraints, $is_pk ); |
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372 | my $is_nullable = 1; |
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373 | for my $meta ( @{ $item[4] } ) { |
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374 | if ( $meta->{'type'} eq 'default' ) { |
375 | $default = $meta; |
376 | next; |
377 | } |
378 | elsif ( $meta->{'type'} eq 'not_null' ) { |
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379 | $is_nullable = 0; |
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380 | } |
381 | elsif ( $meta->{'type'} eq 'primary_key' ) { |
382 | $is_pk = 1; |
383 | } |
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384 | |
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385 | push @constraints, $meta if $meta->{'supertype'} eq 'constraint'; |
386 | } |
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387 | |
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388 | my @comments = ( @{ $item[1] }, @{ $item[5] } ); |
389 | |
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390 | $return = { |
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391 | supertype => 'field', |
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392 | name => $item{'field_name'}, |
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393 | data_type => $item{'data_type'}{'type'}, |
394 | size => $item{'data_type'}{'size'}, |
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395 | is_nullable => $is_nullable, |
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396 | default => $default->{'value'}, |
397 | constraints => [ @constraints ], |
398 | comments => [ @comments ], |
399 | is_primary_key => $is_pk || 0, |
400 | is_auto_increment => $item{'data_type'}{'is_auto_increment'}, |
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401 | } |
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402 | } |
403 | | <error> |
404 | |
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405 | field_comment : /^\s*(?:#|-{2})(.*)\n/ |
406 | { |
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407 | my $comment = $item[1]; |
408 | $comment =~ s/^\s*(#|-*)\s*//; |
409 | $comment =~ s/\s*$//; |
410 | $return = $comment; |
411 | } |
412 | |
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413 | field_meta : default_val |
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414 | | column_constraint |
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415 | |
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416 | view_fields : '(' field_name(s /,/) ')' |
417 | { $return = join (',', @{$item[2]} ) } |
418 | |
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419 | column_constraint : constraint_name(?) column_constraint_type deferrable(?) deferred(?) |
420 | { |
421 | my $desc = $item{'column_constraint_type'}; |
422 | my $type = $desc->{'type'}; |
423 | my $fields = $desc->{'fields'} || []; |
424 | my $expression = $desc->{'expression'} || ''; |
425 | |
426 | $return = { |
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427 | supertype => 'constraint', |
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428 | name => $item{'constraint_name'}[0] || '', |
429 | type => $type, |
430 | expression => $type eq 'check' ? $expression : '', |
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431 | deferrable => $item{'deferrable'}, |
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432 | deferred => $item{'deferred'}, |
433 | reference_table => $desc->{'reference_table'}, |
434 | reference_fields => $desc->{'reference_fields'}, |
435 | match_type => $desc->{'match_type'}, |
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436 | on_delete => $desc->{'on_delete'} || $desc->{'on_delete_do'}, |
437 | on_update => $desc->{'on_update'} || $desc->{'on_update_do'}, |
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438 | } |
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439 | } |
440 | |
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441 | constraint_name : /constraint/i NAME { $item[2] } |
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442 | |
443 | column_constraint_type : /not null/i { $return = { type => 'not_null' } } |
444 | | |
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445 | /null/i |
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446 | { $return = { type => 'null' } } |
447 | | |
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448 | /unique/i |
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449 | { $return = { type => 'unique' } } |
450 | | |
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451 | /primary key/i |
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452 | { $return = { type => 'primary_key' } } |
453 | | |
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454 | /check/i '(' /[^)]+/ ')' |
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455 | { $return = { type => 'check', expression => $item[3] } } |
0efb6e1b |
456 | | |
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457 | /references/i table_id parens_word_list(?) match_type(?) key_action(s?) |
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458 | { |
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459 | my $table_info = $item{'table_id'}; |
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460 | my $schema_name = $table_info->{'schema_name'}; |
461 | my $table_name = $table_info->{'table_name'}; |
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462 | my ( $on_delete, $on_update ); |
463 | for my $action ( @{ $item[5] || [] } ) { |
464 | $on_delete = $action->{'action'} if $action->{'type'} eq 'delete'; |
465 | $on_update = $action->{'action'} if $action->{'type'} eq 'update'; |
466 | } |
467 | |
0efb6e1b |
468 | $return = { |
469 | type => 'foreign_key', |
a20abbda |
470 | reference_table => $table_name, |
0138f7bb |
471 | reference_fields => $item[3][0], |
0efb6e1b |
472 | match_type => $item[4][0], |
100684f3 |
473 | on_delete => $on_delete, |
474 | on_update => $on_update, |
ba1a1626 |
475 | } |
4422e22a |
476 | } |
477 | |
501ed387 |
478 | table_id : schema_qualification(?) NAME { |
330e4686 |
479 | $return = { schema_name => $item[1][0], table_name => $item[2] } |
a20abbda |
480 | } |
481 | |
501ed387 |
482 | view_id : schema_qualification(?) NAME { |
330e4686 |
483 | $return = { schema_name => $item[1][0], view_name => $item[2] } |
484 | } |
485 | |
486 | view_target : /select|with/i /[^;]+/ { |
487 | $return = "$item[1] $item[2]"; |
488 | } |
489 | |
490 | # SELECT views _may_ support outer parens, and we used to produce |
491 | # such sql, although non-standard. Use ugly lookeahead to parse |
492 | view_target : '(' /select/i / [^;]+ (?= \) ) /x ')' { |
493 | $return = "$item[2] $item[3]" |
494 | } |
495 | |
ea93df61 |
496 | view_target_spec : |
330e4686 |
497 | |
501ed387 |
498 | schema_qualification : NAME '.' |
4422e22a |
499 | |
501ed387 |
500 | schema_name : NAME |
34338cb2 |
501 | |
501ed387 |
502 | field_name : NAME |
4422e22a |
503 | |
0efb6e1b |
504 | double_quote: /"/ |
4422e22a |
505 | |
501ed387 |
506 | index_name : NAME |
4422e22a |
507 | |
9da488f2 |
508 | array_indicator : '[' ']' |
509 | { $return = $item[1].$item[2] } |
c96cd4a8 |
510 | |
9da488f2 |
511 | data_type : pg_data_type parens_value_list(?) array_indicator(?) |
ea93df61 |
512 | { |
3022f45b |
513 | my $data_type = $item[1]; |
ba1a1626 |
514 | |
9da488f2 |
515 | $data_type->{type} .= $item[3][0] if $item[3][0]; |
516 | |
0efb6e1b |
517 | # |
518 | # We can deduce some sizes from the data type's name. |
519 | # |
9da488f2 |
520 | if ( my @size = @{$item[2]} ) { |
521 | $data_type->{'size'} = (@size == 1 ? $size[0] : \@size); |
44ffdb73 |
522 | } |
4422e22a |
523 | |
3022f45b |
524 | $return = $data_type; |
4422e22a |
525 | } |
526 | |
0efb6e1b |
527 | pg_data_type : |
50840472 |
528 | /(bigint|int8)/i |
ea93df61 |
529 | { |
530 | $return = { |
50840472 |
531 | type => 'integer', |
b8ea6076 |
532 | size => 20, |
3022f45b |
533 | }; |
534 | } |
0efb6e1b |
535 | | |
1bbd4a2b |
536 | /(smallint|int2)/i |
ea93df61 |
537 | { |
3022f45b |
538 | $return = { |
ea93df61 |
539 | type => 'integer', |
b8ea6076 |
540 | size => 5, |
3022f45b |
541 | }; |
542 | } |
0efb6e1b |
543 | | |
c4c363bb |
544 | /interval/i |
545 | { |
546 | $return = { type => 'interval' }; |
547 | } |
548 | | |
50840472 |
549 | /(integer|int4?)/i # interval must come before this |
ea93df61 |
550 | { |
3022f45b |
551 | $return = { |
ea93df61 |
552 | type => 'integer', |
b8ea6076 |
553 | size => 10, |
3022f45b |
554 | }; |
555 | } |
ea93df61 |
556 | | |
50840472 |
557 | /(real|float4)/i |
ea93df61 |
558 | { |
50840472 |
559 | $return = { |
ea93df61 |
560 | type => 'real', |
b8ea6076 |
561 | size => 10, |
50840472 |
562 | }; |
563 | } |
0efb6e1b |
564 | | |
1bbd4a2b |
565 | /(double precision|float8?)/i |
ea93df61 |
566 | { |
3022f45b |
567 | $return = { |
ea93df61 |
568 | type => 'float', |
b8ea6076 |
569 | size => 20, |
ea93df61 |
570 | }; |
3022f45b |
571 | } |
0efb6e1b |
572 | | |
50840472 |
573 | /(bigserial|serial8)/i |
ea93df61 |
574 | { |
575 | $return = { |
576 | type => 'integer', |
577 | size => 20, |
7eac5e12 |
578 | is_auto_increment => 1, |
3022f45b |
579 | }; |
580 | } |
0efb6e1b |
581 | | |
1bbd4a2b |
582 | /serial4?/i |
ea93df61 |
583 | { |
584 | $return = { |
7eac5e12 |
585 | type => 'integer', |
ea93df61 |
586 | size => 11, |
7eac5e12 |
587 | is_auto_increment => 1, |
3022f45b |
588 | }; |
589 | } |
0efb6e1b |
590 | | |
1bbd4a2b |
591 | /(bit varying|varbit)/i |
ea93df61 |
592 | { |
3022f45b |
593 | $return = { type => 'varbit' }; |
594 | } |
0efb6e1b |
595 | | |
1bbd4a2b |
596 | /character varying/i |
ea93df61 |
597 | { |
3022f45b |
598 | $return = { type => 'varchar' }; |
599 | } |
0efb6e1b |
600 | | |
1bbd4a2b |
601 | /char(acter)?/i |
ea93df61 |
602 | { |
3022f45b |
603 | $return = { type => 'char' }; |
604 | } |
0efb6e1b |
605 | | |
1bbd4a2b |
606 | /bool(ean)?/i |
ea93df61 |
607 | { |
3022f45b |
608 | $return = { type => 'boolean' }; |
609 | } |
0efb6e1b |
610 | | |
1bbd4a2b |
611 | /bytea/i |
ea93df61 |
612 | { |
82968eb9 |
613 | $return = { type => 'bytea' }; |
3022f45b |
614 | } |
0efb6e1b |
615 | | |
b5a782a0 |
616 | /(timestamptz|timestamp)(?:\(\d\))?( with(?:out)? time zone)?/i |
ea93df61 |
617 | { |
b5a782a0 |
618 | $return = { type => 'timestamp' . ($2||'') }; |
3022f45b |
619 | } |
0efb6e1b |
620 | | |
38a6a4f9 |
621 | /text/i |
ea93df61 |
622 | { |
623 | $return = { |
38a6a4f9 |
624 | type => 'text', |
625 | size => 64_000, |
626 | }; |
627 | } |
628 | | |
9f03b4c2 |
629 | /(bit|box|cidr|circle|date|inet|line|lseg|macaddr|money|numeric|decimal|path|point|polygon|timetz|time|varchar|json|hstore)/i |
ea93df61 |
630 | { |
3022f45b |
631 | $return = { type => $item[1] }; |
632 | } |
0efb6e1b |
633 | |
4422e22a |
634 | parens_value_list : '(' VALUE(s /,/) ')' |
635 | { $item[2] } |
636 | |
efd0c9ec |
637 | |
501ed387 |
638 | parens_word_list : '(' NAME(s /,/) ')' |
0efb6e1b |
639 | { $item[2] } |
4422e22a |
640 | |
0efb6e1b |
641 | field_size : '(' num_range ')' { $item{'num_range'} } |
4422e22a |
642 | |
0efb6e1b |
643 | num_range : DIGITS ',' DIGITS |
4422e22a |
644 | { $return = $item[1].','.$item[3] } |
645 | | DIGITS |
646 | { $return = $item[1] } |
647 | |
f2f71b8e |
648 | table_constraint : comment(s?) constraint_name(?) table_constraint_type deferrable(?) deferred(?) comment(s?) |
0efb6e1b |
649 | { |
650 | my $desc = $item{'table_constraint_type'}; |
651 | my $type = $desc->{'type'}; |
652 | my $fields = $desc->{'fields'}; |
653 | my $expression = $desc->{'expression'}; |
f2f71b8e |
654 | my @comments = ( @{ $item[1] }, @{ $item[-1] } ); |
0efb6e1b |
655 | |
656 | $return = { |
d4056aa7 |
657 | name => $item[2][0] || '', |
b3384294 |
658 | supertype => 'constraint', |
659 | type => $type, |
0efb6e1b |
660 | fields => $type ne 'check' ? $fields : [], |
661 | expression => $type eq 'check' ? $expression : '', |
f04713db |
662 | deferrable => $item{'deferrable'}, |
0efb6e1b |
663 | deferred => $item{'deferred'}, |
664 | reference_table => $desc->{'reference_table'}, |
665 | reference_fields => $desc->{'reference_fields'}, |
840447a5 |
666 | match_type => $desc->{'match_type'}, |
100684f3 |
667 | on_delete => $desc->{'on_delete'} || $desc->{'on_delete_do'}, |
668 | on_update => $desc->{'on_update'} || $desc->{'on_update_do'}, |
f2f71b8e |
669 | comments => [ @comments ], |
ea93df61 |
670 | } |
0efb6e1b |
671 | } |
4422e22a |
672 | |
501ed387 |
673 | table_constraint_type : /primary key/i '(' NAME(s /,/) ')' |
ea93df61 |
674 | { |
0efb6e1b |
675 | $return = { |
676 | type => 'primary_key', |
677 | fields => $item[3], |
678 | } |
679 | } |
680 | | |
501ed387 |
681 | /unique/i '(' NAME(s /,/) ')' |
ea93df61 |
682 | { |
0efb6e1b |
683 | $return = { |
684 | type => 'unique', |
685 | fields => $item[3], |
686 | } |
687 | } |
688 | | |
ea93df61 |
689 | /check/i '(' /[^)]+/ ')' |
0efb6e1b |
690 | { |
691 | $return = { |
692 | type => 'check', |
693 | expression => $item[3], |
694 | } |
695 | } |
696 | | |
501ed387 |
697 | /foreign key/i '(' NAME(s /,/) ')' /references/i table_id parens_word_list(?) match_type(?) key_action(s?) |
0efb6e1b |
698 | { |
3022f45b |
699 | my ( $on_delete, $on_update ); |
700 | for my $action ( @{ $item[9] || [] } ) { |
701 | $on_delete = $action->{'action'} if $action->{'type'} eq 'delete'; |
702 | $on_update = $action->{'action'} if $action->{'type'} eq 'update'; |
703 | } |
ea93df61 |
704 | |
0efb6e1b |
705 | $return = { |
b3384294 |
706 | supertype => 'constraint', |
0efb6e1b |
707 | type => 'foreign_key', |
708 | fields => $item[3], |
a20abbda |
709 | reference_table => $item[6]->{'table_name'}, |
0efb6e1b |
710 | reference_fields => $item[7][0], |
711 | match_type => $item[8][0], |
100684f3 |
712 | on_delete => $on_delete || '', |
713 | on_update => $on_update || '', |
0efb6e1b |
714 | } |
715 | } |
716 | |
ea93df61 |
717 | deferrable : not(?) /deferrable/i |
718 | { |
0efb6e1b |
719 | $return = ( $item[1] =~ /not/i ) ? 0 : 1; |
720 | } |
4422e22a |
721 | |
0efb6e1b |
722 | deferred : /initially/i /(deferred|immediate)/i { $item[2] } |
4422e22a |
723 | |
840447a5 |
724 | match_type : /match/i /partial|full|simple/i { $item[2] } |
0efb6e1b |
725 | |
ea93df61 |
726 | key_action : key_delete |
3022f45b |
727 | | |
728 | key_update |
0efb6e1b |
729 | |
3022f45b |
730 | key_delete : /on delete/i key_mutation |
ea93df61 |
731 | { |
732 | $return = { |
3022f45b |
733 | type => 'delete', |
734 | action => $item[2], |
735 | }; |
736 | } |
737 | |
738 | key_update : /on update/i key_mutation |
ea93df61 |
739 | { |
740 | $return = { |
3022f45b |
741 | type => 'update', |
742 | action => $item[2], |
743 | }; |
744 | } |
745 | |
746 | key_mutation : /no action/i { $return = 'no_action' } |
747 | | |
748 | /restrict/i { $return = 'restrict' } |
749 | | |
750 | /cascade/i { $return = 'cascade' } |
751 | | |
38a6a4f9 |
752 | /set null/i { $return = 'set null' } |
3022f45b |
753 | | |
38a6a4f9 |
754 | /set default/i { $return = 'set default' } |
0efb6e1b |
755 | |
ea93df61 |
756 | alter : alter_table table_id add_column field ';' |
757 | { |
00ef67ea |
758 | my $field_def = $item[4]; |
a20abbda |
759 | $tables{ $item[2]->{'table_name'} }{'fields'}{ $field_def->{'name'} } = { |
00ef67ea |
760 | %$field_def, order => $field_order++ |
761 | }; |
762 | 1; |
763 | } |
764 | |
ea93df61 |
765 | alter : alter_table table_id ADD table_constraint ';' |
766 | { |
a20abbda |
767 | my $table_name = $item[2]->{'table_name'}; |
0012a163 |
768 | my $constraint = $item[4]; |
0012a163 |
769 | push @{ $tables{ $table_name }{'constraints'} }, $constraint; |
00ef67ea |
770 | 1; |
0012a163 |
771 | } |
772 | |
ea93df61 |
773 | alter : alter_table table_id drop_column NAME restrict_or_cascade(?) ';' |
00ef67ea |
774 | { |
a20abbda |
775 | $tables{ $item[2]->{'table_name'} }{'fields'}{ $item[4] }{'drop'} = 1; |
00ef67ea |
776 | 1; |
777 | } |
0012a163 |
778 | |
ea93df61 |
779 | alter : alter_table table_id alter_column NAME alter_default_val ';' |
00ef67ea |
780 | { |
ea93df61 |
781 | $tables{ $item[2]->{'table_name'} }{'fields'}{ $item[4] }{'default'} = |
00ef67ea |
782 | $item[5]->{'value'}; |
783 | 1; |
784 | } |
785 | |
786 | # |
787 | # These will just parse for now but won't affect the structure. - ky |
788 | # |
330e4686 |
789 | alter : alter_table table_id /rename/i /to/i NAME ';' |
00ef67ea |
790 | { 1 } |
791 | |
ea93df61 |
792 | alter : alter_table table_id alter_column NAME SET /statistics/i INTEGER ';' |
00ef67ea |
793 | { 1 } |
794 | |
330e4686 |
795 | alter : alter_table table_id alter_column NAME SET /storage/i storage_type ';' |
00ef67ea |
796 | { 1 } |
797 | |
330e4686 |
798 | alter : alter_table table_id rename_column NAME /to/i NAME ';' |
00ef67ea |
799 | { 1 } |
800 | |
330e4686 |
801 | alter : alter_table table_id DROP /constraint/i NAME restrict_or_cascade ';' |
00ef67ea |
802 | { 1 } |
803 | |
330e4686 |
804 | alter : alter_table table_id /owner/i /to/i NAME ';' |
00ef67ea |
805 | { 1 } |
806 | |
6f28e7ac |
807 | alter : alter_sequence NAME /owned/i /by/i column_name ';' |
808 | { 1 } |
809 | |
00ef67ea |
810 | storage_type : /(plain|external|extended|main)/i |
811 | |
bdf60588 |
812 | temporary : /temp(orary)?\b/i |
330e4686 |
813 | { |
814 | 1; |
815 | } |
3e98f7d9 |
816 | |
330e4686 |
817 | or_replace : /or replace/i |
3e98f7d9 |
818 | |
ea93df61 |
819 | alter_default_val : SET default_val |
820 | { |
821 | $return = { value => $item[2]->{'value'} } |
822 | } |
823 | | DROP DEFAULT |
824 | { |
825 | $return = { value => undef } |
00ef67ea |
826 | } |
00ef67ea |
827 | |
828 | # |
ea93df61 |
829 | # This is a little tricky to get right, at least WRT to making the |
00ef67ea |
830 | # tests pass. The problem is that the constraints are stored just as |
831 | # a list (no name access), and the tests expect the constraints in a |
ea93df61 |
832 | # particular order. I'm going to leave the rule but disable the code |
00ef67ea |
833 | # for now. - ky |
834 | # |
330e4686 |
835 | alter : alter_table table_id alter_column NAME alter_nullable ';' |
00ef67ea |
836 | { |
a20abbda |
837 | # my $table_name = $item[2]->{'table_name'}; |
00ef67ea |
838 | # my $field_name = $item[4]; |
839 | # my $is_nullable = $item[5]->{'is_nullable'}; |
840 | # |
ea93df61 |
841 | # $tables{ $table_name }{'fields'}{ $field_name }{'is_nullable'} = |
00ef67ea |
842 | # $is_nullable; |
843 | # |
844 | # if ( $is_nullable ) { |
845 | # 1; |
846 | # push @{ $tables{ $table_name }{'constraints'} }, { |
847 | # type => 'not_null', |
848 | # fields => [ $field_name ], |
849 | # }; |
850 | # } |
851 | # else { |
ea93df61 |
852 | # for my $i ( |
853 | # 0 .. $#{ $tables{ $table_name }{'constraints'} || [] } |
00ef67ea |
854 | # ) { |
855 | # my $c = $tables{ $table_name }{'constraints'}[ $i ] or next; |
856 | # my $fields = join( '', @{ $c->{'fields'} || [] } ) or next; |
857 | # if ( $c->{'type'} eq 'not_null' && $fields eq $field_name ) { |
858 | # delete $tables{ $table_name }{'constraints'}[ $i ]; |
859 | # last; |
860 | # } |
861 | # } |
862 | # } |
863 | |
864 | 1; |
865 | } |
866 | |
ea93df61 |
867 | alter_nullable : SET not_null |
868 | { |
869 | $return = { is_nullable => 0 } |
00ef67ea |
870 | } |
871 | | DROP not_null |
ea93df61 |
872 | { |
873 | $return = { is_nullable => 1 } |
00ef67ea |
874 | } |
875 | |
876 | not_null : /not/i /null/i |
877 | |
99f3fab6 |
878 | not : /not/i |
879 | |
00ef67ea |
880 | add_column : ADD COLUMN(?) |
881 | |
882 | alter_table : ALTER TABLE ONLY(?) |
883 | |
ea93df61 |
884 | alter_sequence : ALTER SEQUENCE |
6f28e7ac |
885 | |
00ef67ea |
886 | drop_column : DROP COLUMN(?) |
887 | |
888 | alter_column : ALTER COLUMN(?) |
889 | |
890 | rename_column : /rename/i COLUMN(?) |
891 | |
ea93df61 |
892 | restrict_or_cascade : /restrict/i | |
00ef67ea |
893 | /cascade/i |
894 | |
34338cb2 |
895 | # Handle functions that can be called |
ea93df61 |
896 | select : SELECT select_function ';' |
34338cb2 |
897 | { 1 } |
898 | |
899 | # Read the setval function but don't do anything with it because this parser |
900 | # isn't handling sequences |
ea93df61 |
901 | select_function : schema_qualification(?) /setval/i '(' VALUE /,/ VALUE /,/ /(true|false)/i ')' |
34338cb2 |
902 | { 1 } |
903 | |
904 | # Skipping all COPY commands |
905 | copy : COPY WORD /[^;]+/ ';' { 1 } |
906 | { 1 } |
907 | |
908 | # The "\." allows reading in from STDIN but this isn't needed for schema |
909 | # creation, so it is skipped. |
910 | readin_symbol : '\.' |
911 | {1} |
912 | |
00ef67ea |
913 | # |
914 | # End basically useless stuff. - ky |
915 | # |
0012a163 |
916 | |
211e2e90 |
917 | create_table : CREATE TABLE |
0efb6e1b |
918 | |
211e2e90 |
919 | create_index : CREATE /index/i |
4422e22a |
920 | |
501ed387 |
921 | default_val : DEFAULT DEFAULT_VALUE ( '::' data_type )(?) |
ea93df61 |
922 | { |
501ed387 |
923 | my $val = $item[2]; |
a68deb7d |
924 | $val =~ s/^\((\d+)\)\z/$1/; # for example (0)::smallint |
0efb6e1b |
925 | $return = { |
82968eb9 |
926 | supertype => 'constraint', |
927 | type => 'default', |
0efb6e1b |
928 | value => $val, |
929 | } |
4422e22a |
930 | } |
f27085c9 |
931 | | /null/i |
ea93df61 |
932 | { |
f27085c9 |
933 | $return = { |
934 | supertype => 'constraint', |
935 | type => 'default', |
936 | value => 'NULL', |
937 | } |
938 | } |
4422e22a |
939 | |
501ed387 |
940 | DEFAULT_VALUE : VALUE |
941 | | /\w+\(.*\)/ |
942 | | /\w+/ |
943 | | /\(\d+\)/ |
944 | |
4422e22a |
945 | name_with_opt_paren : NAME parens_value_list(s?) |
0efb6e1b |
946 | { $item[2][0] ? "$item[1]($item[2][0][0])" : $item[1] } |
4422e22a |
947 | |
948 | unique : /unique/i { 1 } |
949 | |
950 | key : /key/i | /index/i |
951 | |
501ed387 |
952 | table_option : /inherits/i '(' NAME(s /,/) ')' |
ea93df61 |
953 | { |
0efb6e1b |
954 | $return = { type => 'inherits', table_name => $item[3] } |
955 | } |
956 | | |
957 | /with(out)? oids/i |
958 | { |
959 | $return = { type => $item[1] =~ /out/i ? 'without_oids' : 'with_oids' } |
4422e22a |
960 | } |
961 | |
00ef67ea |
962 | ADD : /add/i |
963 | |
964 | ALTER : /alter/i |
965 | |
211e2e90 |
966 | CREATE : /create/i |
967 | |
00ef67ea |
968 | ONLY : /only/i |
969 | |
970 | DEFAULT : /default/i |
971 | |
972 | DROP : /drop/i |
973 | |
974 | COLUMN : /column/i |
975 | |
0d51cd9e |
976 | TABLE : /table/i |
977 | |
330e4686 |
978 | VIEW : /view/i |
979 | |
34338cb2 |
980 | SCHEMA : /schema/i |
981 | |
0efb6e1b |
982 | SEMICOLON : /\s*;\n?/ |
983 | |
6f28e7ac |
984 | SEQUENCE : /sequence/i |
985 | |
34338cb2 |
986 | SELECT : /select/i |
987 | |
988 | COPY : /copy/i |
989 | |
00ef67ea |
990 | INTEGER : /\d+/ |
991 | |
4422e22a |
992 | WORD : /\w+/ |
993 | |
994 | DIGITS : /\d+/ |
995 | |
996 | COMMA : ',' |
997 | |
00ef67ea |
998 | SET : /set/i |
999 | |
501ed387 |
1000 | NAME : DQSTRING |
4422e22a |
1001 | | /\w+/ |
501ed387 |
1002 | |
1003 | DQSTRING : '"' /((?:[^"]|"")+)/ '"' |
1004 | { ($return = $item[2]) =~ s/""/"/g; } |
1005 | |
1006 | SQSTRING : "'" /((?:[^']|'')*)/ "'" |
1007 | { ($return = $item[2]) =~ s/''/'/g } |
1008 | |
1009 | VALUE : /[-+]?\d*\.?\d+(?:[eE]\d+)?/ |
1010 | | SQSTRING |
f04713db |
1011 | | /null/i |
4422e22a |
1012 | { 'NULL' } |
1013 | |
bdf60588 |
1014 | END_OF_GRAMMAR |
4422e22a |
1015 | |
4422e22a |
1016 | sub parse { |
1017 | my ( $translator, $data ) = @_; |
4422e22a |
1018 | |
bdf60588 |
1019 | # Enable warnings within the Parse::RecDescent module. |
1020 | local $::RD_ERRORS = 1 unless defined $::RD_ERRORS; # Make sure the parser dies when it encounters an error |
1021 | local $::RD_WARN = 1 unless defined $::RD_WARN; # Enable warnings. This will warn on unused rules &c. |
1022 | local $::RD_HINT = 1 unless defined $::RD_HINT; # Give out hints to help fix problems. |
4422e22a |
1023 | |
bdf60588 |
1024 | local $::RD_TRACE = $translator->trace ? 1 : undef; |
1025 | local $DEBUG = $translator->debug; |
1026 | |
1027 | my $parser = ddl_parser_instance('PostgreSQL'); |
4422e22a |
1028 | |
1029 | my $result = $parser->startrule($data); |
1030 | die "Parse failed.\n" unless defined $result; |
1031 | warn Dumper($result) if $DEBUG; |
82968eb9 |
1032 | |
1033 | my $schema = $translator->schema; |
ea93df61 |
1034 | my @tables = sort { |
330e4686 |
1035 | ( $result->{tables}{ $a }{'order'} || 0 ) <=> ( $result->{tables}{ $b }{'order'} || 0 ) |
1036 | } keys %{ $result->{tables} }; |
82968eb9 |
1037 | |
1038 | for my $table_name ( @tables ) { |
330e4686 |
1039 | my $tdata = $result->{tables}{ $table_name }; |
ea93df61 |
1040 | my $table = $schema->add_table( |
a20abbda |
1041 | #schema => $tdata->{'schema_name'}, |
1042 | name => $tdata->{'table_name'}, |
d7fcc1d6 |
1043 | ) or die "Couldn't create table '$table_name': " . $schema->error; |
82968eb9 |
1044 | |
3e98f7d9 |
1045 | $table->extra(temporary => 1) if $tdata->{'temporary'}; |
1046 | |
a82fa2cb |
1047 | $table->comments( $tdata->{'comments'} ); |
1048 | |
ea93df61 |
1049 | my @fields = sort { |
1050 | $tdata->{'fields'}{ $a }{'order'} |
82968eb9 |
1051 | <=> |
429f639c |
1052 | $tdata->{'fields'}{ $b }{'order'} |
82968eb9 |
1053 | } keys %{ $tdata->{'fields'} }; |
1054 | |
1055 | for my $fname ( @fields ) { |
1056 | my $fdata = $tdata->{'fields'}{ $fname }; |
00ef67ea |
1057 | next if $fdata->{'drop'}; |
82968eb9 |
1058 | my $field = $table->add_field( |
1059 | name => $fdata->{'name'}, |
1060 | data_type => $fdata->{'data_type'}, |
1061 | size => $fdata->{'size'}, |
1062 | default_value => $fdata->{'default'}, |
7eac5e12 |
1063 | is_auto_increment => $fdata->{'is_auto_increment'}, |
00ef67ea |
1064 | is_nullable => $fdata->{'is_nullable'}, |
a82fa2cb |
1065 | comments => $fdata->{'comments'}, |
82968eb9 |
1066 | ) or die $table->error; |
1067 | |
1068 | $table->primary_key( $field->name ) if $fdata->{'is_primary_key'}; |
1069 | |
1070 | for my $cdata ( @{ $fdata->{'constraints'} } ) { |
1071 | next unless $cdata->{'type'} eq 'foreign_key'; |
1072 | $cdata->{'fields'} ||= [ $field->name ]; |
1073 | push @{ $tdata->{'constraints'} }, $cdata; |
1074 | } |
1075 | } |
1076 | |
1077 | for my $idata ( @{ $tdata->{'indices'} || [] } ) { |
1078 | my $index = $table->add_index( |
1079 | name => $idata->{'name'}, |
1080 | type => uc $idata->{'type'}, |
1081 | fields => $idata->{'fields'}, |
3406fd5b |
1082 | ) or die $table->error . ' ' . $table->name; |
82968eb9 |
1083 | } |
1084 | |
1085 | for my $cdata ( @{ $tdata->{'constraints'} || [] } ) { |
1086 | my $constraint = $table->add_constraint( |
1087 | name => $cdata->{'name'}, |
1088 | type => $cdata->{'type'}, |
1089 | fields => $cdata->{'fields'}, |
1090 | reference_table => $cdata->{'reference_table'}, |
1091 | reference_fields => $cdata->{'reference_fields'}, |
1092 | match_type => $cdata->{'match_type'} || '', |
100684f3 |
1093 | on_delete => $cdata->{'on_delete'} || $cdata->{'on_delete_do'}, |
1094 | on_update => $cdata->{'on_update'} || $cdata->{'on_update_do'}, |
b3384294 |
1095 | expression => $cdata->{'expression'}, |
1096 | ) or die "Can't add constraint of type '" . |
ea93df61 |
1097 | $cdata->{'type'} . "' to table '" . $table->name . |
b3384294 |
1098 | "': " . $table->error; |
82968eb9 |
1099 | } |
1100 | } |
1101 | |
330e4686 |
1102 | for my $vinfo (@{$result->{views}}) { |
1103 | my $sql = $vinfo->{sql}; |
1104 | $sql =~ s/\A\s+|\s+\z//g; |
1105 | my $view = $schema->add_view ( |
1106 | name => $vinfo->{view_name}, |
1107 | sql => $sql, |
1108 | fields => $vinfo->{fields}, |
1109 | ); |
1110 | |
1111 | $view->extra ( temporary => 1 ) if $vinfo->{is_temporary}; |
1112 | } |
1113 | |
c96cd4a8 |
1114 | for my $trigger (@{ $result->{triggers} }) { |
1115 | $schema->add_trigger( %$trigger ); |
1116 | } |
1117 | |
f62bd16c |
1118 | return 1; |
4422e22a |
1119 | } |
1120 | |
1121 | 1; |
1122 | |
82968eb9 |
1123 | # ------------------------------------------------------------------- |
1124 | # Rescue the drowning and tie your shoestrings. |
ea93df61 |
1125 | # Henry David Thoreau |
82968eb9 |
1126 | # ------------------------------------------------------------------- |
4422e22a |
1127 | |
1128 | =pod |
1129 | |
0efb6e1b |
1130 | =head1 AUTHORS |
4422e22a |
1131 | |
11ad2df9 |
1132 | Ken Y. Clark E<lt>kclark@cpan.orgE<gt>, |
b8ea6076 |
1133 | Allen Day E<lt>allenday@ucla.eduE<gt>. |
4422e22a |
1134 | |
1135 | =head1 SEE ALSO |
1136 | |
1137 | perl(1), Parse::RecDescent. |
1138 | |
1139 | =cut |