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
Andres Freund 01368e5d9d Split all OBJS style lines in makefiles into one-line-per-entry style. 
When maintaining or merging patches, one of the most common sources
for conflicts are the list of objects in makefiles. Especially when
the split across lines has been changed on both sides, which is
somewhat common due to attempting to stay below 80 columns, those
conflicts are unnecessarily laborious to resolve.

By splitting, and alphabetically sorting, OBJS style lines into one
object per line, conflicts should be less frequent, and easier to
resolve when they still occur.

Author: Andres Freund
Discussion: https://postgr.es/m/20191029200901.vww4idgcxv74cwes@alap3.anarazel.de
 		2019-11-05 14:41:07 -08:00
..
.gitignore Convert cvsignore to gitignore, and add .gitignore for build targets. 2010-09-22 12:57:04 +02:00
Makefile Split all OBJS style lines in makefiles into one-line-per-entry style. 2019-11-05 14:41:07 -08:00
README Move keywords.c/kwlookup.c into src/common/. 2016-03-23 20:22:08 -04:00
analyze.c Represent Lists as expansible arrays, not chains of cons-cells. 2019-07-15 13:41:58 -04:00
check_keywords.pl Update copyright for 2019 2019-01-02 12:44:25 -05:00
gram.y Allow setting statistics target for extended statistics 2019-09-11 00:25:51 +02:00
parse_agg.c Rationalize use of list_concat + list_copy combinations. 2019-08-12 11:20:18 -04:00
parse_clause.c Rationalize use of list_concat + list_copy combinations. 2019-08-12 11:20:18 -04:00
parse_coerce.c Represent Lists as expansible arrays, not chains of cons-cells. 2019-07-15 13:41:58 -04:00
parse_collate.c Represent Lists as expansible arrays, not chains of cons-cells. 2019-07-15 13:41:58 -04:00
parse_cte.c Represent Lists as expansible arrays, not chains of cons-cells. 2019-07-15 13:41:58 -04:00
parse_enr.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
parse_expr.c Represent Lists as expansible arrays, not chains of cons-cells. 2019-07-15 13:41:58 -04:00
parse_func.c Require the schema qualification in pg_temp.type_name(arg). 2019-08-05 07:48:41 -07:00
parse_node.c Reconcile nodes/*funcs.c with PostgreSQL 12 work. 2019-06-09 14:00:36 -07:00
parse_oper.c Fix inconsistencies and typos in the tree, take 9 2019-08-05 12:14:58 +09:00
parse_param.c Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00
parse_relation.c Represent Lists as expansible arrays, not chains of cons-cells. 2019-07-15 13:41:58 -04:00
parse_target.c Represent Lists as expansible arrays, not chains of cons-cells. 2019-07-15 13:41:58 -04:00
parse_type.c Require the schema qualification in pg_temp.type_name(arg). 2019-08-05 07:48:41 -07:00
parse_utilcmd.c Fix handling of GENERATED columns in CREATE TABLE LIKE INCLUDING DEFAULTS. 2019-09-25 17:30:42 -04:00
parser.c Replace the data structure used for keyword lookup. 2019-01-06 17:02:57 -05:00
scan.l Replace the data structure used for keyword lookup. 2019-01-06 17:02:57 -05:00
scansup.c Update copyright for 2019 2019-01-02 12:44:25 -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.