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19 lines
785 B
SQL
19 lines
785 B
SQL
-- The persisted states have counts 2 and 1 and sums 3.0 and 6.0.
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-- Null and canonical empty states do not change the merged AVG1 state.
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SELECT avg_merge(state) = X'4156473103000000000000000000000000002240' AS merged_state_matches
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FROM avg1_states;
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-- A new state over the equivalent Float64 values has the exact same AVG1 bytes.
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WITH generated_values AS (
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SELECT CAST(1.0 AS DOUBLE) AS value
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UNION ALL SELECT CAST(2.0 AS DOUBLE)
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UNION ALL SELECT CAST(6.0 AS DOUBLE)
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)
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SELECT avg_state(value) = X'4156473103000000000000000000000000002240' AS generated_state_matches
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FROM generated_values;
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-- A null-only merge is the canonical empty AVG1 state.
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SELECT avg_merge(state) = X'4156473100000000000000000000000000000000' AS null_state_is_empty
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FROM avg1_states
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WHERE state IS NULL;
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