From: Matt S Trout <mst@shadowcat.co.uk>
Date: Mon, 30 Sep 2019 19:27:46 +0000 (+0000)
Subject: doc ident and value op expanders
X-Git-Tag: v1.90_01~58
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=662bd62324f98cd0bc4a70bbb01d17629f7ec44b;p=dbsrgits%2FSQL-Abstract.git

doc ident and value op expanders
---

diff --git a/lib/SQL/Abstract/Reference.pm b/lib/SQL/Abstract/Reference.pm
index 343f60a..771d222 100644
--- a/lib/SQL/Abstract/Reference.pm
+++ b/lib/SQL/Abstract/Reference.pm
@@ -883,4 +883,33 @@ Expands is and is_not to null checks, RHS value must be undef:
   bar IS NOT NULL
   []
 
+=head2 ident op
+
+Expands a string ident to an arrayref by splitting on the configured
+separator, almost always '.':
+
+  # expr
+  { -ident => 'foo.bar' }
+
+  # aqt
+  { -ident => [ 'foo', 'bar' ] }
+
+  # query
+  foo.bar
+  []
+
+=head2 value op
+
+Expands to a bind node with the currently applicable column name if known:
+
+  # expr
+  { foo => { '=' => { -value => 3 } } }
+
+  # aqt
+  { -op => [ '=', { -ident => [ 'foo' ] }, { -bind => [ 'foo', 3 ] } ] }
+
+  # query
+  foo = ?
+  [ 3 ]
+
 =cut