rdelaage
/
postgresql
mirror of https://git.postgresql.org/git/postgresql.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
postgresql/src/backend/parser
History
Tom Lane 65d508fd4d Suppress "unused variable" warnings with older versions of flex. 
Versions of flex before 2.5.36 might generate code that results in an
"unused variable" warning, when using %option reentrant.  Historically
we've worked around that by specifying -Wno-error, but that's an
unsatisfying solution.  The official "fix" for this was just to insert a
dummy reference to the variable, so write a small perl script that edits
the generated C code similarly.

The MSVC side of this is untested, but the buildfarm should soon reveal
if I broke that.

Discussion: https://postgr.es/m/25456.1487437842@sss.pgh.pa.us
 		2017-02-19 13:04:30 -05:00
..
.gitignore Convert cvsignore to gitignore, and add .gitignore for build targets. 2010-09-22 12:57:04 +02:00
Makefile Suppress "unused variable" warnings with older versions of flex. 2017-02-19 13:04:30 -05:00
README Move keywords.c/kwlookup.c into src/common/. 2016-03-23 20:22:08 -04:00
analyze.c Remove vestigial resolveUnknown arguments from transformSortClause etc. 2017-01-25 09:35:00 -05:00
check_keywords.pl Update copyright via script for 2017 2017-01-03 13:48:53 -05:00
gram.y Fix YA unwanted behavioral difference with operator_precedence_warning. 2017-02-15 14:44:18 -05:00
parse_agg.c Remove vestigial resolveUnknown arguments from transformSortClause etc. 2017-01-25 09:35:00 -05:00
parse_clause.c Remove vestigial resolveUnknown arguments from transformSortClause etc. 2017-01-25 09:35:00 -05:00
parse_coerce.c Make messages mentioning type names more uniform 2017-01-18 16:08:20 -03:00
parse_collate.c Update copyright via script for 2017 2017-01-03 13:48:53 -05:00
parse_cte.c Change unknown-type literals to type text in SELECT and RETURNING lists. 2017-01-25 09:17:24 -05:00
parse_expr.c Use castNode() in a bunch of statement-list-related code. 2017-01-26 22:09:34 -05:00
parse_func.c Fix check_srf_call_placement() to handle VALUES cases correctly. 2017-01-16 15:23:11 -05:00
parse_node.c Change unknown-type literals to type text in SELECT and RETURNING lists. 2017-01-25 09:17:24 -05:00
parse_oper.c Update copyright via script for 2017 2017-01-03 13:48:53 -05:00
parse_param.c Update copyright via script for 2017 2017-01-03 13:48:53 -05:00
parse_relation.c Move some things from builtins.h to new header files 2017-01-20 20:29:53 -05:00
parse_target.c Change unknown-type literals to type text in SELECT and RETURNING lists. 2017-01-25 09:17:24 -05:00
parse_type.c Use castNode() in a bunch of statement-list-related code. 2017-01-26 22:09:34 -05:00
parse_utilcmd.c Avoid crash in ALTER TABLE not_partitioned DETACH PARTITION. 2017-02-16 08:40:58 -05:00
parser.c Change representation of statement lists, and add statement location info. 2017-01-14 16:02:35 -05:00
scan.l Update copyright via script for 2017 2017-01-03 13:48:53 -05:00
scansup.c Update copyright via script for 2017 2017-01-03 13:48:53 -05:00

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
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)

See also src/common/keywords.c, which contains the table of standard
keywords and the keyword lookup function.  We separated that out because
various frontend code wants to use it too.