postgresql/src/backend/parser
Tom Lane e323c55301 Fix DROP INDEX CONCURRENTLY IF EXISTS.
This threw ERROR, not the expected NOTICE, if the index didn't exist.
The bug was actually visible in not-as-expected regression test output,
so somebody wasn't paying too close attention in commit
8cb53654db.
Per report from Brendan Byrd.
2012-08-27 12:45:43 -04:00
..
.gitignore Convert cvsignore to gitignore, and add .gitignore for build targets. 2010-09-22 12:57:04 +02:00
analyze.c Allow OLD and NEW in multi-row VALUES within rules. 2012-08-19 14:12:16 -04:00
gram.y Fix DROP INDEX CONCURRENTLY IF EXISTS. 2012-08-27 12:45:43 -04:00
keywords.c Update copyright notices for year 2012. 2012-01-01 18:01:58 -05:00
kwlookup.c Update copyright notices for year 2012. 2012-01-01 18:01:58 -05:00
Makefile Call check_keywords.pl in maintainer-check 2012-02-27 13:53:12 +02:00
parse_agg.c Centralize the logic for detecting misplaced aggregates, window funcs, etc. 2012-08-10 11:36:15 -04:00
parse_clause.c Centralize the logic for detecting misplaced aggregates, window funcs, etc. 2012-08-10 11:36:15 -04:00
parse_coerce.c Run pgindent on 9.2 source tree in preparation for first 9.3 2012-06-10 15:20:04 -04:00
parse_collate.c Lots of doc corrections. 2012-04-23 22:43:09 -04:00
parse_cte.c Fix WITH attached to a nested set operation (UNION/INTERSECT/EXCEPT). 2012-07-31 17:56:21 -04:00
parse_expr.c Centralize the logic for detecting misplaced aggregates, window funcs, etc. 2012-08-10 11:36:15 -04:00
parse_func.c Run pgindent on 9.2 source tree in preparation for first 9.3 2012-06-10 15:20:04 -04:00
parse_node.c Centralize the logic for detecting misplaced aggregates, window funcs, etc. 2012-08-10 11:36:15 -04:00
parse_oper.c Update copyright notices for year 2012. 2012-01-01 18:01:58 -05:00
parse_param.c Update copyright notices for year 2012. 2012-01-01 18:01:58 -05:00
parse_relation.c Allow OLD and NEW in multi-row VALUES within rules. 2012-08-19 14:12:16 -04:00
parse_target.c Centralize the logic for detecting misplaced aggregates, window funcs, etc. 2012-08-10 11:36:15 -04:00
parse_type.c Fix WITH attached to a nested set operation (UNION/INTERSECT/EXCEPT). 2012-07-31 17:56:21 -04:00
parse_utilcmd.c Centralize the logic for detecting misplaced aggregates, window funcs, etc. 2012-08-10 11:36:15 -04:00
parser.c Update copyright notices for year 2012. 2012-01-01 18:01:58 -05:00
README Revise collation derivation method and expression-tree representation. 2011-03-19 20:30:08 -04:00
scan.l Update copyright notices for year 2012. 2012-01-01 18:01:58 -05:00
scansup.c Properly escape usernames in initdb, so names with single-quotes are 2012-08-15 11:23:15 -04:00

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_collate.c	assign collation information in completed expressions
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)