rdelaage/postgresql
1
0
Fork 0
mirror of https://git.postgresql.org/git/postgresql.git synced 2024-09-27 21:22:01 +02:00
Code Issues Packages Projects Releases Wiki Activity
694c56af2b
postgresql/src/backend/parser
History
Tom Lane 3a13f12b3a Behave correctly if INSERT ... VALUES is decorated with additional clauses. 
In versions 8.2 and up, the grammar allows attaching ORDER BY, LIMIT,
FOR UPDATE, or WITH to VALUES, and hence to INSERT ... VALUES.  But the
special-case code for VALUES in transformInsertStmt() wasn't expecting any
of those, and just ignored them, leading to unexpected results.  Rather
than complicate the special-case path, just ensure that the presence of any
of those clauses makes us treat the query as if it had a general SELECT.
Per report from Hitoshi Harada.
2010-10-02 20:02:27 -04:00
..
.gitignore Convert cvsignore to gitignore, and add .gitignore for build targets. 2010-09-22 12:57:04 +02:00
analyze.c Behave correctly if INSERT ... VALUES is decorated with additional clauses. 2010-10-02 20:02:27 -04:00
gram.y Add a SECURITY LABEL command. 2010-09-27 20:55:27 -04:00
keywords.c Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
kwlookup.c Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
Makefile Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
parse_agg.c Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
parse_clause.c Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
parse_coerce.c Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
parse_cte.c Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
parse_expr.c Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
parse_func.c Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
parse_node.c Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
parse_oper.c Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
parse_param.c Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
parse_relation.c Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
parse_target.c Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
parse_type.c Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
parse_utilcmd.c Add ALTER TYPE ... ADD/DROP/ALTER/RENAME ATTRIBUTE 2010-09-26 14:41:03 +03:00
parser.c Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
README Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
scan.l Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
scansup.c Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00

README 

src/backend/parser/README

Parser
======

This directory does more than tokenize and parse SQL queries.  It also
creates Query structures for the various complex queries that are passed
to the optimizer and then executor.

parser.c	things start here
scan.l		break query into tokens
scansup.c	handle escapes in input strings
kwlookup.c	turn keywords into specific tokens
keywords.c	table of standard keywords (passed to kwlookup.c)
gram.y		parse the tokens and produce a "raw" parse tree
analyze.c	top level of parse analysis for optimizable queries
parse_agg.c	handle aggregates, like SUM(col1),  AVG(col2), ...
parse_clause.c	handle clauses like WHERE, ORDER BY, GROUP BY, ...
parse_coerce.c	handle coercing expressions to different data types
parse_cte.c	handle Common Table Expressions (WITH clauses)
parse_expr.c	handle expressions like col, col + 3, x = 3 or x = 4
parse_func.c	handle functions, table.column and column identifiers
parse_node.c	create nodes for various structures
parse_oper.c	handle operators in expressions
parse_param.c	handle Params (for the cases used in the core backend)
parse_relation.c support routines for tables and column handling
parse_target.c	handle the result list of the query
parse_type.c	support routines for data type handling
parse_utilcmd.c	parse analysis for utility commands (done at execution time)