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Add test

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alesapin 2020-11-13 11:45:51 +03:00
parent fdf979d5ce
commit e590a341e5
2 changed files with 47 additions and 0 deletions
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6
tests/queries/0_stateless/01576_alter_low_cardinality_and_select.reference Normal file
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733 733
CREATE TABLE default.alter_table\n(\n `key` UInt64,\n `value` LowCardinality(String)\n)\nENGINE = MergeTree\nORDER BY key\nSETTINGS index_granularity = 8192
all_1_1_0
all_2_2_0
all_3_3_0
701 701

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tests/queries/0_stateless/01576_alter_low_cardinality_and_select.sh Executable file
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#!/usr/bin/env bash
CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
. "$CURDIR"/../shell_config.sh
${CLICKHOUSE_CLIENT} --query "DROP TABLE IF EXISTS alter_table"
${CLICKHOUSE_CLIENT} --query "CREATE TABLE alter_table (key UInt64, value String) ENGINE MergeTree ORDER BY key"
# we don't need mutations and merges
${CLICKHOUSE_CLIENT} --query "SYSTEM STOP MERGES alter_table"
${CLICKHOUSE_CLIENT} --query "INSERT INTO alter_table SELECT number, toString(number) FROM numbers(10000)"
${CLICKHOUSE_CLIENT} --query "INSERT INTO alter_table SELECT number, toString(number) FROM numbers(10000, 10000)"
${CLICKHOUSE_CLIENT} --query "INSERT INTO alter_table SELECT number, toString(number) FROM numbers(20000, 10000)"
${CLICKHOUSE_CLIENT} --query "SELECT * FROM alter_table WHERE value == '733'"
${CLICKHOUSE_CLIENT} --query "ALTER TABLE alter_table MODIFY COLUMN value LowCardinality(String)" &
type_query="SELECT type FROM system.columns WHERE name = 'value' and table='alter_table' and database='${CLICKHOUSE_DATABASE}'"
value_type=""
# waiting until schema will change (but not data)
while [[ "$value_type" != "LowCardinality(String)" ]]
do
sleep 0.1
value_type=$($CLICKHOUSE_CLIENT --query "$type_query")
done
# checking type is LowCardinalty
${CLICKHOUSE_CLIENT} --query "SHOW CREATE TABLE alter_table"
# checking no mutations happened
${CLICKHOUSE_CLIENT} --query "SELECT name FROM system.parts where table='alter_table' and active and database='${CLICKHOUSE_DATABASE}' ORDER BY name"
# checking that conversions applied "on fly" works
${CLICKHOUSE_CLIENT} --query "SELECT * FROM alter_table PREWHERE key > 700 WHERE value = '701'"
${CLICKHOUSE_CLIENT} --query "DROP TABLE IF EXISTS alter_table"