postgresql

History

Peter Eisentraut 2c6f37ed62 Replace GrantObjectType with ObjectType There used to be a lot of different Type and Kind symbol groups to address objects within different commands, most of which have been replaced by ObjectType, starting with `b256f24264`. But this conversion was never done for the ACL commands until now. This change ends up being just a plain replacement of the types and symbols, without any code restructuring needed, except deleting some now redundant code. Reviewed-by: Michael Paquier <michael.paquier@gmail.com> Reviewed-by: Stephen Frost <sfrost@snowman.net>		2018-01-19 14:01:14 -05:00
..
.gitignore	Convert cvsignore to gitignore, and add .gitignore for build targets.	2010-09-22 12:57:04 +02:00
Makefile	Add infrastructure to support EphemeralNamedRelation references.	2017-03-31 23:17:18 -05:00
README	Move keywords.c/kwlookup.c into src/common/.	2016-03-23 20:22:08 -04:00
analyze.c	Update copyright for 2018	2018-01-02 23:30:12 -05:00
check_keywords.pl	Update copyright for 2018	2018-01-02 23:30:12 -05:00
gram.y	Replace GrantObjectType with ObjectType	2018-01-19 14:01:14 -05:00
parse_agg.c	Update copyright for 2018	2018-01-02 23:30:12 -05:00
parse_clause.c	Update copyright for 2018	2018-01-02 23:30:12 -05:00
parse_coerce.c	Update copyright for 2018	2018-01-02 23:30:12 -05:00
parse_collate.c	Update copyright for 2018	2018-01-02 23:30:12 -05:00
parse_cte.c	Update copyright for 2018	2018-01-02 23:30:12 -05:00
parse_enr.c	Update copyright for 2018	2018-01-02 23:30:12 -05:00
parse_expr.c	Update copyright for 2018	2018-01-02 23:30:12 -05:00
parse_func.c	Update copyright for 2018	2018-01-02 23:30:12 -05:00
parse_node.c	Update copyright for 2018	2018-01-02 23:30:12 -05:00
parse_oper.c	Update copyright for 2018	2018-01-02 23:30:12 -05:00
parse_param.c	Update copyright for 2018	2018-01-02 23:30:12 -05:00
parse_relation.c	Update copyright for 2018	2018-01-02 23:30:12 -05:00
parse_target.c	Update copyright for 2018	2018-01-02 23:30:12 -05:00
parse_type.c	Update copyright for 2018	2018-01-02 23:30:12 -05:00
parse_utilcmd.c	Local partitioned indexes	2018-01-19 11:49:22 -03:00
parser.c	Update copyright for 2018	2018-01-02 23:30:12 -05:00
scan.l	Update copyright for 2018	2018-01-02 23:30:12 -05:00
scansup.c	Update copyright for 2018	2018-01-02 23:30:12 -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.