statement ok
CREATE TABLE a(a INT)

statement ok
CREATE DATABASE public; CREATE TABLE public.public.t(a INT)

# "public" with the current database designates the public schema
query TTTTIT
SHOW TABLES FROM public
----
public  a  table  root  0  NULL

# To access all tables in database "public", one must specify
# its public schema explicitly.
query TTTTIT
SHOW TABLES FROM public.public
----
public  t  table  root  0  NULL

# Of course one can also list the tables in "public" by making it the
# current database.
statement ok
SET database = public

query TTTTIT
SHOW TABLES
----
public  t  table  root  0  NULL

statement ok
SET database = test

statement ok
DROP DATABASE public

# Unqualified pg_type resolves from pg_catalog.
query T
SELECT typname FROM pg_type WHERE typname = 'date'
----
date

# Override table and check name resolves properly.
statement ok
SET search_path=public,pg_catalog

statement ok
CREATE TABLE pg_type(x INT); INSERT INTO pg_type VALUES(42)

query I
SELECT x FROM pg_type
----
42

# Leave database, check name resolves to default.
# The expected error can only occur on the virtual pg_type, not the physical one.
query error cannot access virtual schema in anonymous database
SET database = ''; SELECT * FROM pg_type

# Go to different database, check name still resolves to default.
query T
CREATE DATABASE foo; SET database = foo; SELECT typname FROM pg_type WHERE typname = 'date'
----
date

# Verify that pg_catalog at the beginning of the search path takes precedence.
query T
SET database = test; SET search_path = pg_catalog,public; SELECT typname FROM pg_type WHERE typname = 'date'
----
date

# Now set the search path to the testdb, placing pg_catalog explicitly
# at the end.
query I
SET search_path = public,pg_catalog; SELECT x FROM pg_type
----
42

statement ok
DROP TABLE pg_type; RESET search_path; SET database = test

# Unqualified index name resolution.
statement ok
ALTER INDEX a_pkey RENAME TO a_pk

# Schema-qualified index name resolution.
statement ok
ALTER INDEX public.a_pk RENAME TO a_pk2

# DB-qualified index name resolution (CRDB 1.x compat).
statement ok
ALTER INDEX test.a_pk2 RENAME TO a_pk3

statement ok
CREATE DATABASE public; CREATE TABLE public.public.t(a INT)

# We can't see the DB "public" with DB-qualified index name resolution.
statement error index "t_pkey" does not exist
ALTER INDEX public.t_pkey RENAME TO t_pk

# But we can see it with sufficient qualification.
statement ok
ALTER INDEX public.public.t_pkey RENAME TO t_pk

# If the search path is invalid, we get a special error.
statement ok
SET search_path = invalid

statement error schema or database was not found while searching index: "a_pk3"
ALTER INDEX a_pk3 RENAME TO a_pk4

# But qualification resolves the problem.
statement ok
ALTER INDEX public.a_pk3 RENAME TO a_pk4
