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ci: added CLT test for issue #3844 
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‎test/clt-tests/bugs/3844-max-ft-field-crash.rec‎

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Test for issue #3844: MAX()/AVG()/MIN()/SUM() on text field leads to crash
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https://github.com/manticoresoftware/manticoresearch/issues/3844
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Bug: Using MAX(), AVG(), MIN(), or SUM() on a text/string column previously caused a crash or freeze.
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Fix: Now returns proper error message instead of crashing.
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This test verifies:
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1. Aggregation functions (MAX, MIN, SUM, AVG) properly error on full-text text fields instead of crashing
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2. Aggregation functions (MAX, MIN, SUM, AVG) properly error on string attributes instead of crashing (row-wise storage)
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3. Aggregation functions (MAX, MIN, SUM, AVG) properly error on string attributes instead of crashing (columnar storage)
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4. COUNT(DISTINCT) on string attributes correctly identifies unique values with duplicates
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5. Aggregation functions work on numeric fields when grouping BY string attributes
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––– comment –––
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Start Manticore Search
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––– block: ../base/start-searchd –––
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––– comment –––
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=== Test 1: Aggregations on full-text text field (should fail) ===
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––– comment –––
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Drop table if exists and create table with text field
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––– input –––
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mysql -h0 -P9306 -e "drop table if exists t; create table t(s text);"
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––– output –––
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––– comment –––
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Insert test data
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––– input –––
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mysql -h0 -P9306 -e "insert into t values(1, 'a');"
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––– output –––
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––– comment –––
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Test MAX() on text field - should return error instead of crashing
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––– input –––
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mysql -h0 -P9306 -e "select max(s) from t;"
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––– output –––
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ERROR 1064 (42000) at line 1: table t: MAX() cannot be used on text/string column 's'
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––– comment –––
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Test AVG() on text field - should return error instead of crashing
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––– input –––
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mysql -h0 -P9306 -e "select avg(s) from t;"
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––– output –––
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ERROR 1064 (42000) at line 1: table t: AVG() cannot be used on text/string column 's'
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––– comment –––
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Test MIN() on text field - should return error instead of crashing
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––– input –––
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mysql -h0 -P9306 -e "select min(s) from t;"
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––– output –––
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ERROR 1064 (42000) at line 1: table t: MIN() cannot be used on text/string column 's'
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––– comment –––
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Test SUM() on text field - should return error instead of crashing
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––– input –––
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mysql -h0 -P9306 -e "select sum(s) from t;"
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––– output –––
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ERROR 1064 (42000) at line 1: table t: SUM() cannot be used on text/string column 's'
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––– comment –––
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=== Test 2: MAX/MIN on string attributes when grouping BY numeric fields (row-wise storage) ===
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––– comment –––
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Create table with string attribute, numeric category, and numeric attributes (row-wise storage)
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Test that MAX/MIN work on string attributes when grouping BY numeric fields
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––– input –––
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mysql -h0 -P9306 -e "drop table if exists t_str_rowwise; create table t_str_rowwise(category_id int, name string, price int);"
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––– output –––
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––– comment –––
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Insert test data with categories and duplicate strings
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––– input –––
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mysql -h0 -P9306 -e "insert into t_str_rowwise(id, category_id, name, price) values(1, 1, 'apple', 10), (2, 1, 'banana', 15), (3, 2, 'apple', 20), (4, 2, 'cherry', 25), (5, 1, 'date', 30);"
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––– output –––
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––– comment –––
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Test MAX on string attribute without GROUP BY - should return error (but not crash)
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String attributes cannot be aggregated without GROUP BY context
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––– input –––
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mysql -h0 -P9306 -e "select max(name) from t_str_rowwise;"
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––– output –––
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ERROR 1064 (42000) at line 1: table t_str_rowwise: can not aggregate non-scalar attribute 'name'
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––– comment –––
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Test MIN on string attribute without GROUP BY - should return error (but not crash)
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––– input –––
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mysql -h0 -P9306 -e "select min(name) from t_str_rowwise;"
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––– output –––
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ERROR 1064 (42000) at line 1: table t_str_rowwise: can not aggregate non-scalar attribute 'name'
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––– comment –––
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Test AVG on string attribute without GROUP BY - should return error (but not crash)
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––– input –––
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mysql -h0 -P9306 -e "select avg(name) from t_str_rowwise;"
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––– output –––
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ERROR 1064 (42000) at line 1: table t_str_rowwise: can not aggregate non-scalar attribute 'name'
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––– comment –––
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Test SUM on string attribute without GROUP BY - should return error (but not crash)
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––– input –––
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mysql -h0 -P9306 -e "select sum(name) from t_str_rowwise;"
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––– output –––
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ERROR 1064 (42000) at line 1: table t_str_rowwise: can not aggregate non-scalar attribute 'name'
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––– comment –––
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Test GROUP BY string attribute with aggregations on numeric field (price) - should work
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Group BY string attribute and aggregate numeric values within each string group
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––– input –––
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mysql -h0 -P9306 -e "select name, count(*), sum(price), max(price), min(price), avg(price) from t_str_rowwise group by name order by count(*) desc;"
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––– output –––
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+--------+----------+------------+------------+------------+------------+
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| name | count(*) | sum(price) | max(price) | min(price) | avg(price) |
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+--------+----------+------------+------------+------------+------------+
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| apple | 2 | 30 | 20 | 10 | 15.000000 |
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| banana | 1 | 15 | 15 | 15 | 15.000000 |
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| cherry | 1 | 25 | 25 | 25 | 25.000000 |
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| date | 1 | 30 | 30 | 30 | 30.000000 |
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+--------+----------+------------+------------+------------+------------+
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––– comment –––
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Test COUNT(DISTINCT) on string attribute with duplicates - should show unique count
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––– input –––
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mysql -h0 -P9306 -e "select count(distinct name) from t_str_rowwise;"
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––– output –––
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+----------------------+
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| count(distinct name) |
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+----------------------+
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| 4 |
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+----------------------+
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––– comment –––
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=== Test 3: MAX/MIN on string attributes when grouping BY numeric fields (columnar storage) ===
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––– comment –––
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Create table with string attribute, numeric category, and numeric attributes using columnar storage
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Test that MAX/MIN work on string attributes when grouping BY numeric fields
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––– input –––
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mysql -h0 -P9306 -e "drop table if exists t_str_columnar; create table t_str_columnar(category_id int, name string, price int) engine='columnar';"
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––– output –––
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––– comment –––
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Insert test data with categories and duplicate strings
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––– input –––
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mysql -h0 -P9306 -e "insert into t_str_columnar(id, category_id, name, price) values(1, 1, 'apple', 10), (2, 1, 'banana', 15), (3, 2, 'apple', 20), (4, 2, 'cherry', 25), (5, 1, 'date', 30);"
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––– output –––
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––– comment –––
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Test MAX on string attribute without GROUP BY in columnar storage - should return error (but not crash)
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String attributes cannot be aggregated without GROUP BY context
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––– input –––
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mysql -h0 -P9306 -e "select max(name) from t_str_columnar;"
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––– output –––
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ERROR 1064 (42000) at line 1: table t_str_columnar: can not aggregate non-scalar attribute 'name'
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––– comment –––
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Test MIN on string attribute without GROUP BY in columnar storage - should return error (but not crash)
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––– input –––
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mysql -h0 -P9306 -e "select min(name) from t_str_columnar;"
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––– output –––
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ERROR 1064 (42000) at line 1: table t_str_columnar: can not aggregate non-scalar attribute 'name'
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––– comment –––
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Test AVG on string attribute without GROUP BY in columnar storage - should return error (but not crash)
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––– input –––
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mysql -h0 -P9306 -e "select avg(name) from t_str_columnar;"
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––– output –––
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ERROR 1064 (42000) at line 1: table t_str_columnar: can not aggregate non-scalar attribute 'name'
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––– comment –––
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Test SUM on string attribute without GROUP BY in columnar storage - should return error (but not crash)
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––– input –––
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mysql -h0 -P9306 -e "select sum(name) from t_str_columnar;"
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––– output –––
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ERROR 1064 (42000) at line 1: table t_str_columnar: can not aggregate non-scalar attribute 'name'
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––– comment –––
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Test GROUP BY string attribute with aggregations on numeric field (price) in columnar storage - should work
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Group BY string attribute and aggregate numeric values within each string group
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––– input –––
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mysql -h0 -P9306 -e "select name, count(*), sum(price), max(price), min(price), avg(price) from t_str_columnar group by name order by count(*) desc;"
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––– output –––
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+--------+----------+------------+------------+------------+------------+
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| name | count(*) | sum(price) | max(price) | min(price) | avg(price) |
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+--------+----------+------------+------------+------------+------------+
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| apple | 2 | 30 | 20 | 10 | 15.000000 |
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| banana | 1 | 15 | 15 | 15 | 15.000000 |
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| cherry | 1 | 25 | 25 | 25 | 25.000000 |
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| date | 1 | 30 | 30 | 30 | 30.000000 |
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+--------+----------+------------+------------+------------+------------+
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––– comment –––
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Test COUNT(DISTINCT) on string attribute with duplicates in columnar storage - should show unique count
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––– input –––
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mysql -h0 -P9306 -e "select count(distinct name) from t_str_columnar;"
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––– output –––
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+----------------------+
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| count(distinct name) |
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+----------------------+
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| 4 |
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+----------------------+
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––– comment –––

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