Clear a session parameter previously set via PARAM_SET
Per-row — runs once for each row.
| name | type | description |
|---|---|---|
| key | VARCHAR | — |
Clears a parameter and yields NULL so callers can apply a fallback
SELECT
COALESCE(
CAST(@ param_clear ('region') AS VARCHAR),
'cleared'
)Remove or mask personally identifiable information from text
Type-cast messy real-world values that trip up standard CAST
Return the canonical/official form of a value (auto-detects entity type)
Extracts 4-digit year from messy text, returns -1 if undetermined
LLM-backed year extraction (escape hatch for CLEAN_YEAR)
Pick the best non-null value from a group (quality-aware COALESCE)
Clear a session parameter previously set via PARAM_SET
Per-row — runs once for each row.
| name | type | description |
|---|---|---|
| key | VARCHAR | — |
Clears a parameter and yields NULL so callers can apply a fallback
SELECT
COALESCE(
CAST(@ param_clear ('region') AS VARCHAR),
'cleared'
)Remove or mask personally identifiable information from text
Type-cast messy real-world values that trip up standard CAST
Return the canonical/official form of a value (auto-detects entity type)
Extracts 4-digit year from messy text, returns -1 if undetermined
LLM-backed year extraction (escape hatch for CLEAN_YEAR)
Pick the best non-null value from a group (quality-aware COALESCE)