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https://github.com/GreptimeTeam/greptimedb.git
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ab22bbac84
* feat: impl drop view * fix: metric name * fix: comments * test: add DropViewProcedure test * test: drop view meets a table * test: update sqlness tests by drop view * feat: apply suggestion from AI * chore: apply suggestion Co-authored-by: Jeremyhi <jiachun_feng@proton.me> * chore: apply suggestion Co-authored-by: Jeremyhi <jiachun_feng@proton.me> * chore: apply suggestion Co-authored-by: Jeremyhi <jiachun_feng@proton.me> * fix: TYPE_NAME for DropFlowProcedure --------- Co-authored-by: Jeremyhi <jiachun_feng@proton.me>
61 lines
1.2 KiB
SQL
61 lines
1.2 KiB
SQL
CREATE TABLE t1 (n INT, ts TIMESTAMP TIME INDEX);
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INSERT INTO t1 VALUES (1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6), (7, 7), (8, 8), (9, 9), (10, 10);
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CREATE VIEW IF NOT EXISTS v1 (a) AS SELECT * FROM t1;
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CREATE VIEW IF NOT EXISTS v1 (a) AS SELECT n FROM t1;
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SHOW CREATE VIEW v1;
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SELECT * FROM v1;
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SELECT a FROM v1;
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SELECT n FROM v1;
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CREATE OR REPLACE VIEW v1 (a, b) AS SELECT n, n+1 FROM t1;
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SHOW CREATE VIEW v1;
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SELECT * FROM v1;
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SELECT * FROM v1 WHERE a > 5;
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SELECT * FROM v1 WHERE b > 5;
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SELECT a FROM v1;
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SELECT b FROM v1;
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SELECT a,b FROM v1;
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SELECT n FROM v1;
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SELECT * FROM v1 WHERE n > 5;
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-- test view after altering table t1 --
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CREATE OR REPLACE VIEW v1 AS SELECT n, ts FROM t1 LIMIT 5;
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SELECT * FROM v1;
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ALTER TABLE t1 ADD COLUMN s STRING DEFAULT '';
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SELECT * FROM v1;
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ALTER TABLE t1 DROP COLUMN n;
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-- FIXME(dennis): The result looks weird,
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-- Looks like substrait referes to columns only by their relative indices, so that’s name-independent.
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-- Limit: skip=0, fetch=5
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-- Projection: greptime.public.t1.ts, greptime.public.t1.s
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-- MergeScan [is_placeholder=false]
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-- Limit: skip=0, fetch=5
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-- MergeScan [is_placeholder=false]
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-- See https://github.com/apache/datafusion/issues/6489
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SELECT * FROM v1;
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DROP VIEW v1;
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DROP TABLE t1;
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