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postgresql/src/backend/parser
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Michael Paquier 9f65aaa408 Remove unused argument "isSlice" from transformAssignmentSubscripts() 
Since c7aba7c, the transform method used during parse analysis of a
subcripting construct has moved from transformAssignmentSubscripts() to
the per-type transform method (arrays or arbitrary types) the step that
checks for slicing support, but transformAssignmentSubscripts() has kept
traces of it.  Removing it simplifies the code, so let's clean up all
that.

Author: Zhang Mingli
Reviewed-by: Richard Guo
Discussion: https://postgr.es/m/0d7041ac-c704-48ad-86fd-e05feddf08ed@Spark
 		2022-09-18 15:33:16 +09:00
..
.gitignore Convert cvsignore to gitignore, and add .gitignore for build targets. 2010-09-22 12:57:04 +02:00
Makefile Revert SQL/JSON features 2022-09-01 17:07:14 -04:00
README Update src/backend/parser/README 2022-07-22 12:56:21 +02:00
analyze.c Make subquery aliases optional in the FROM clause. 2022-07-20 09:29:42 +01:00
check_keywords.pl Update copyright for 2022 2022-01-07 19:04:57 -05:00
gram.y Move gramparse.h to src/backend/parser 2022-09-14 10:57:13 +07:00
gramparse.h Move gramparse.h to src/backend/parser 2022-09-14 10:57:13 +07:00
parse_agg.c Add support for MERGE SQL command 2022-03-28 16:47:48 +02:00
parse_clause.c Revert SQL/JSON features 2022-09-01 17:07:14 -04:00
parse_coerce.c Fix failure to validate the result of select_common_type(). 2022-01-29 11:41:18 -05:00
parse_collate.c Revert SQL/JSON features 2022-09-01 17:07:14 -04:00
parse_cte.c Reject MERGE in CTEs and COPY 2022-08-12 12:05:50 +02:00
parse_enr.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
parse_expr.c Revert SQL/JSON features 2022-09-01 17:07:14 -04:00
parse_func.c Improve performance of ORDER BY / DISTINCT aggregates 2022-08-02 23:11:45 +12:00
parse_merge.c Change mechanism to set up source targetlist in MERGE 2022-04-12 09:29:39 +02:00
parse_node.c In transformRowExpr(), check for too many columns in the row. 2022-07-29 13:31:10 -04:00
parse_oper.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
parse_param.c Pre-beta mechanical code beautification. 2022-05-12 15:17:30 -04:00
parse_relation.c Remove duplicate initialization 2022-09-14 15:36:21 +02:00
parse_target.c Remove unused argument "isSlice" from transformAssignmentSubscripts() 2022-09-18 15:33:16 +09:00
parse_type.c Add construct_array_builtin, deconstruct_array_builtin 2022-07-01 11:23:15 +02:00
parse_utilcmd.c In extensions, don't replace objects not belonging to the extension. 2022-08-08 11:12:31 -04:00
parser.c Move gramparse.h to src/backend/parser 2022-09-14 10:57:13 +07:00
scan.l Move gramparse.h to src/backend/parser 2022-09-14 10:57:13 +07:00
scansup.c Update copyright for 2022 2022-01-07 19:04:57 -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_enr.c	handle ephemeral named rels (trigger transition tables, ...)
parse_func.c	handle functions, table.column and column identifiers
parse_jsontable.c handle JSON_TABLE
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.