postgresql/src/backend/parser
Peter Eisentraut c538592959 Make all Perl warnings fatal
There are a lot of Perl scripts in the tree, mostly code generation
and TAP tests.  Occasionally, these scripts produce warnings.  These
are probably always mistakes on the developer side (true positives).
Typical examples are warnings from genbki.pl or related when you make
a mess in the catalog files during development, or warnings from tests
when they massage a config file that looks different on different
hosts, or mistakes during merges (e.g., duplicate subroutine
definitions), or just mistakes that weren't noticed because there is a
lot of output in a verbose build.

This changes all warnings into fatal errors, by replacing

    use warnings;

by

    use warnings FATAL => 'all';

in all Perl files.

Discussion: https://www.postgresql.org/message-id/flat/06f899fd-1826-05ab-42d6-adeb1fd5e200%40eisentraut.org
2023-12-29 18:20:00 +01:00
..
.gitignore Convert cvsignore to gitignore, and add .gitignore for build targets. 2010-09-22 12:57:04 +02:00
analyze.c Avoid unnecessary plancache revalidation of utility statements. 2023-08-24 12:02:46 -04:00
check_keywords.pl Make all Perl warnings fatal 2023-12-29 18:20:00 +01:00
gram.y Remove useless LIMIT_OPTION_DEFAULT value from LimitOption 2023-12-16 18:20:03 +01:00
gramparse.h Update copyright for 2023 2023-01-02 15:00:37 -05:00
Makefile Remove distprep 2023-11-06 15:18:04 +01:00
meson.build Update copyright for 2023 2023-01-02 15:00:37 -05:00
parse_agg.c Compute aggregate argument types correctly in transformAggregateCall(). 2023-11-06 10:38:00 -05:00
parse_clause.c Add missing initializations of p_perminfo 2023-07-14 14:56:35 +09:00
parse_coerce.c Make Vars be outer-join-aware. 2023-01-30 13:16:20 -05:00
parse_collate.c Add trailing commas to enum definitions 2023-10-26 09:20:54 +02:00
parse_cte.c Add trailing commas to enum definitions 2023-10-26 09:20:54 +02:00
parse_enr.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
parse_expr.c Fix translation markers 2023-08-24 10:25:51 +02:00
parse_func.c Add trailing commas to enum definitions 2023-10-26 09:20:54 +02:00
parse_merge.c Pre-beta mechanical code beautification. 2023-05-19 17:24:48 -04:00
parse_node.c Allow underscores in integer and numeric constants. 2023-02-04 09:48:51 +00:00
parse_oper.c Extend ALTER OPERATOR to allow setting more optimization attributes. 2023-10-20 12:28:46 -04:00
parse_param.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
parse_relation.c Add missing initializations of p_perminfo 2023-07-14 14:56:35 +09:00
parse_target.c Track nesting depth correctly when drilling down into RECORD Vars. 2023-09-15 17:01:52 -04:00
parse_type.c Handle \v as a whitespace character in parsers 2023-07-06 08:16:24 +09:00
parse_utilcmd.c Add TupleDescGetDefault() 2023-09-27 18:52:40 +01:00
parser.c Code review for recent SQL/JSON commits 2023-04-04 14:04:30 +02:00
README Remove outdated reference to a removed file 2023-06-15 22:35:42 +09:00
scan.l Handle \v as a whitespace character in parsers 2023-07-06 08:16:24 +09:00
scansup.c Handle \v as a whitespace character in parsers 2023-07-06 08:16:24 +09:00

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
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_enr.c	handle ephemeral named rels (trigger transition tables, ...)
parse_func.c	handle functions, table.column and column identifiers
parse_merge.c	handle MERGE
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.