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postgres/src/backend/parser
History
Tom Lane aa731ed843
Change nextval and other sequence functions to specify their sequence 		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 Change nextval and other sequence functions to specify their sequence 21 years ago
gram.y Add comments explaining clauses used by CREATE ROLE but not ALTER. 21 years ago
keywords.c Add ALTER TABLE ENABLE/DISABLE TRIGGER commands. Change pg_dump to 21 years ago
parse_agg.c Remove planner's private fields from Query struct, and put them into 21 years ago
parse_clause.c Replace the parser's namespace tree (which formerly had the same 21 years ago
parse_coerce.c Change expandRTE() and ResolveNew() back to taking just the single 21 years ago
parse_expr.c Add Oracle-compatible GREATEST and LEAST functions. Pavel Stehule 21 years ago
parse_func.c Add a hack requested by the JDBC driver writers: when a function's 21 years ago
parse_node.c Change the UNKNOWN type to have an internal representation matching 21 years ago
parse_oper.c Tag appropriate files for rc3 21 years ago
parse_relation.c Add NOWAIT option to SELECT FOR UPDATE/SHARE. 21 years ago
parse_target.c Add Oracle-compatible GREATEST and LEAST functions. Pavel Stehule 21 years ago
parse_type.c Add NOWAIT option to SELECT FOR UPDATE/SHARE. 21 years ago
parser.c Tag appropriate files for rc3 21 years ago
scan.l Reject operator names >= NAMEDATALEN characters. These will not work 21 years ago
scansup.c Tag appropriate files for rc3 21 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