CREATE TABLE IF NOT EXISTS.

doc/src/sgml/ref/create_table.sgml

src/backend/bootstrap/bootparse.y

src/backend/catalog/heap.c

src/backend/catalog/toasting.c

src/backend/commands/cluster.c

src/backend/commands/sequence.c

src/backend/commands/tablecmds.c

src/backend/commands/typecmds.c

src/backend/commands/view.c

src/backend/executor/execMain.c

src/backend/nodes/copyfuncs.c

src/backend/nodes/equalfuncs.c

src/backend/nodes/outfuncs.c

src/backend/parser/gram.y

src/backend/tcop/utility.c

src/include/catalog/heap.h

src/include/nodes/parsenodes.h

src/test/regress/expected/create_table.out

src/test/regress/expected/typed_table.out

src/test/regress/sql/create_table.sql