Materialize/test/sqllogictest/explain/replan_catalog_items.slt

# Copyright Materialize, Inc. and contributors. All rights reserved.
#
# Use of this software is governed by the Business Source License
# included in the LICENSE file at the root of this repository.
#
# As of the Change Date specified in that file, in accordance with
# the Business Source License, use of this software will be governed
# by the Apache License, Version 2.0.

mode cockroach

statement ok
CREATE TABLE t1 (
  x int,
  y int
);

statement ok
CREATE TABLE t2 (
  y int,
  z int
);

statement ok
CREATE VIEW v AS SELECT x, sum(z) FROM t1 JOIN t2 USING(y) GROUP BY x

statement ok
CREATE MATERIALIZED VIEW mv AS SELECT x, sum(z) FROM t1 JOIN t2 USING(y) GROUP BY x

statement ok
CREATE INDEX ON t1(y);

# EXPLAIN and EXPLAIN REPLAN should coincide.
query T multiline
EXPLAIN OPTIMIZED PLAN WITH (humanized expressions) AS VERBOSE TEXT FOR
MATERIALIZED VIEW mv;
----
materialize.public.mv:
  Reduce group_by=[#0{x}] aggregates=[sum(#1{z})]
    Project (#0{x}, #3{z})
      Join on=(#1{y} = #2{y}) type=differential
        ArrangeBy keys=[[#1{y}]]
          Filter (#1{y}) IS NOT NULL
            ReadStorage materialize.public.t1
        ArrangeBy keys=[[#0{y}]]
          Filter (#0{y}) IS NOT NULL
            ReadStorage materialize.public.t2

Source materialize.public.t1
  filter=((#1{y}) IS NOT NULL)
Source materialize.public.t2
  filter=((#0{y}) IS NOT NULL)

Target cluster: quickstart

EOF

# EXPLAIN and EXPLAIN REPLAN should coincide.
query T multiline
EXPLAIN OPTIMIZED PLAN WITH (humanized expressions) AS VERBOSE TEXT FOR
REPLAN MATERIALIZED VIEW mv;
----
materialize.public.mv:
  Reduce group_by=[#0{x}] aggregates=[sum(#1{z})]
    Project (#0{x}, #3{z})
      Join on=(#1{y} = #2{y}) type=differential
        ArrangeBy keys=[[#1{y}]]
          Filter (#1{y}) IS NOT NULL
            ReadStorage materialize.public.t1
        ArrangeBy keys=[[#0{y}]]
          Filter (#0{y}) IS NOT NULL
            ReadStorage materialize.public.t2

Source materialize.public.t1
  filter=((#1{y}) IS NOT NULL)
Source materialize.public.t2
  filter=((#0{y}) IS NOT NULL)

Target cluster: quickstart

EOF

# EXPLAIN CREATE should differ from the above two.
query T multiline
EXPLAIN OPTIMIZED PLAN WITH (humanized expressions) AS VERBOSE TEXT FOR
CREATE MATERIALIZED VIEW mv AS SELECT x, sum(z) FROM t1 JOIN t2 USING(y) GROUP BY x;
----
materialize.public.mv:
  Reduce group_by=[#0{x}] aggregates=[sum(#1{z})]
    Project (#0{x}, #3{z})
      Join on=(#1{y} = #2{y}) type=differential
        ArrangeBy keys=[[#1{y}]]
          ReadIndex on=t1 t1_y_idx=[differential join]
        ArrangeBy keys=[[#0{y}]]
          Filter (#0{y}) IS NOT NULL
            ReadStorage materialize.public.t2

Source materialize.public.t2
  filter=((#0{y}) IS NOT NULL)

Used Indexes:
  - materialize.public.t1_y_idx (differential join)

Target cluster: quickstart

EOF

statement ok
CREATE INDEX v_idx ON v(x);

# EXPLAIN and EXPLAIN REPLAN should coincide.
query T multiline
EXPLAIN OPTIMIZED PLAN WITH (humanized expressions) AS VERBOSE TEXT FOR
INDEX v_idx;
----
materialize.public.v_idx:
  ArrangeBy keys=[[#0{x}]]
    ReadGlobalFromSameDataflow materialize.public.v

materialize.public.v:
  Reduce group_by=[#0{x}] aggregates=[sum(#1{z})]
    Project (#0{x}, #3{z})
      Join on=(#1{y} = #2{y}) type=differential
        ArrangeBy keys=[[#1{y}]]
          ReadIndex on=t1 t1_y_idx=[differential join]
        ArrangeBy keys=[[#0{y}]]
          Filter (#0{y}) IS NOT NULL
            ReadStorage materialize.public.t2

Source materialize.public.t2
  filter=((#0{y}) IS NOT NULL)

Used Indexes:
  - materialize.public.t1_y_idx (differential join)

Target cluster: quickstart

EOF

# EXPLAIN and EXPLAIN REPLAN should coincide.
query T multiline
EXPLAIN OPTIMIZED PLAN WITH (humanized expressions) AS VERBOSE TEXT FOR
REPLAN INDEX v_idx;
----
materialize.public.v_idx:
  ArrangeBy keys=[[#0{x}]]
    ReadGlobalFromSameDataflow materialize.public.v

materialize.public.v:
  Reduce group_by=[#0{x}] aggregates=[sum(#1{z})]
    Project (#0{x}, #3{z})
      Join on=(#1{y} = #2{y}) type=differential
        ArrangeBy keys=[[#1{y}]]
          ReadIndex on=t1 t1_y_idx=[differential join]
        ArrangeBy keys=[[#0{y}]]
          Filter (#0{y}) IS NOT NULL
            ReadStorage materialize.public.t2

Source materialize.public.t2
  filter=((#0{y}) IS NOT NULL)

Used Indexes:
  - materialize.public.t1_y_idx (differential join)

Target cluster: quickstart

EOF

# EXPLAIN CREATE should differ from the above two.
query T multiline
EXPLAIN OPTIMIZED PLAN WITH (humanized expressions) AS VERBOSE TEXT FOR
CREATE INDEX ON v(x);
----
materialize.public.v_x_idx:
  ArrangeBy keys=[[#0{x}]]
    ReadIndex on=v v_idx=[plan root (no new arrangement)]

Used Indexes:
  - materialize.public.v_idx (plan root (no new arrangement), index export)

Target cluster: quickstart

Notices:
  - Notice: Index materialize.public.v_x_idx is identical to materialize.public.v_idx, which is also defined on v(x).
    Hint: Please drop all indexes except the first index created on v(x) and recreate all dependent objects.

EOF