mirror of https://github.com/citusdata/citus.git
94 lines
3.0 KiB
Plaintext
94 lines
3.0 KiB
Plaintext
--
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-- MULTI_MASTER_DELETE_PROTOCOL
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--
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-- Create a new range partitioned customer_delete_protocol table and stage data into it.
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CREATE TABLE customer_delete_protocol (
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c_custkey integer not null,
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c_name varchar(25) not null,
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c_address varchar(40) not null,
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c_nationkey integer not null,
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c_phone char(15) not null,
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c_acctbal decimal(15,2) not null,
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c_mktsegment char(10) not null,
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c_comment varchar(117) not null);
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SELECT create_distributed_table('customer_delete_protocol', 'c_custkey', 'append');
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create_distributed_table
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--------------------------
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(1 row)
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\STAGE customer_delete_protocol FROM '@abs_srcdir@/data/customer.1.data' with delimiter '|'
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\STAGE customer_delete_protocol FROM '@abs_srcdir@/data/customer.2.data' with delimiter '|'
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\STAGE customer_delete_protocol FROM '@abs_srcdir@/data/customer.3.data' with delimiter '|'
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-- Check that we don't support conditions on columns other than partition key.
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SELECT apply_delete_command('DELETE FROM customer_delete_protocol
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WHERE c_acctbal > 0.0');
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ERROR: cannot delete from distributed table
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DETAIL: Where clause includes a column other than partition column
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-- Check that we delete a shard if and only if all rows in the shard satisfy the condition.
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SELECT apply_delete_command('DELETE FROM customer_delete_protocol
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WHERE c_custkey > 6500');
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apply_delete_command
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----------------------
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0
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(1 row)
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SELECT count(*) from customer_delete_protocol;
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count
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-------
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3000
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(1 row)
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-- Delete one shard that satisfies the given conditions.
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SELECT apply_delete_command('DELETE FROM customer_delete_protocol
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WHERE c_custkey > 1000 AND c_custkey < 3000');
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apply_delete_command
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----------------------
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1
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(1 row)
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SELECT count(*) from customer_delete_protocol;
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count
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-------
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2000
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(1 row)
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-- Delete all shards if no condition is provided.
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SELECT apply_delete_command('DELETE FROM customer_delete_protocol');
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apply_delete_command
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----------------------
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2
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(1 row)
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SELECT count(*) FROM customer_delete_protocol;
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count
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-------
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(1 row)
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-- Verify that empty shards are deleted if no condition is provided
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SELECT create_empty_shard('customer_delete_protocol');
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create_empty_shard
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--------------------
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102041
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(1 row)
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SELECT apply_delete_command('DELETE FROM customer_delete_protocol
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WHERE c_custkey > 1000');
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apply_delete_command
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----------------------
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0
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(1 row)
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SELECT apply_delete_command('DELETE FROM customer_delete_protocol');
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apply_delete_command
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----------------------
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1
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(1 row)
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-- Verify that apply_delete_command cannot be called in a transaction block
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BEGIN;
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SELECT apply_delete_command('DELETE FROM customer_delete_protocol');
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ERROR: apply_delete_command cannot run inside a transaction block
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ROLLBACK;
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