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postgres/src/backend/parser
History
Tom Lane 02ca529dd8
Make error message more verbose, in hopes of avoiding misunderstandings 		21 years ago
..
.cvsignore Add .cvsignore file so cvs doesn't complain if you have lex/yacc 27 years ago
Makefile $Header: -> $PostgreSQL Changes ... 22 years ago
README cleanup 28 years ago
analyze.c A few minor list-related cleanups: 22 years ago
gram.y Code review for NOWAIT patch: downgrade NOWAIT from fully reserved keyword 22 years ago
keywords.c Update copyright to 2004. 22 years ago
parse_agg.c Pgindent run for 8.0. 22 years ago
parse_clause.c Come to think of it, functions in FROM have the same syntactic restriction 22 years ago
parse_coerce.c Pgindent run for 8.0. 22 years ago
parse_expr.c Pgindent run for 8.0. 22 years ago
parse_func.c Pgindent run for 8.0. 22 years ago
parse_node.c Pgindent run for 8.0. 22 years ago
parse_oper.c Pgindent run for 8.0. 22 years ago
parse_relation.c Allow functions returning void or cstring to appear in FROM clause, 21 years ago
parse_target.c Make error message more verbose, in hopes of avoiding misunderstandings 21 years ago
parse_type.c Pgindent run for 8.0. 22 years ago
parser.c Update copyright to 2004. 22 years ago
scan.l Added a call to gettext() to fix broken translated error messages. 22 years ago
scansup.c Pgindent run for 8.0. 22 years ago

README 

This directory does more than tokenize and parse SQL queries.  It also
creates Query structures for the various complex queries that is passed
to the optimizer and then executor.

parser.c	things start here
scan.l		break query into tokens
scansup.c	handle escapes in input
keywords.c	turn keywords into specific tokens
gram.y		parse the tokens and fill query-type-specific structures
analyze.c	handle post-parse processing for each query type
parse_clause.c	handle clauses like WHERE, ORDER BY, GROUP BY, ...
parse_coerce.c	used for coercing expressions of different types
parse_expr.c	handle expressions like col, col + 3, x = 3 or x = 4
parse_oper.c	handle operations in expressions
parse_agg.c	handle aggregates, like SUM(col1),  AVG(col2), ...
parse_func.c	handle functions, table.column and column identifiers
parse_node.c	create nodes for various structures
parse_target.c	handle the result list of the query
parse_relation.c support routines for tables and column handling
parse_type.c	support routines for type handling