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Parsing out precision date types #65

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Parsing out precision date types #65

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071871f
Parsing out precision date types
esmart2 Dec 4, 2025
a655eaf
Lowercase fix
esmart2 Dec 4, 2025
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12 changes: 12 additions & 0 deletions internal/pkg/object/command/clickhouse/column_types.go
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Original file line number Diff line number Diff line change
Expand Up @@ -139,6 +139,18 @@ func unwrapCHType(t string) (base string, nullable bool) {
if isDecimal(s) {
return "Decimal", nullable
}
// Normalize type names to handle case variations from driver
// Driver may return "Datetime64" or "DateTime64", etc.
sLower := strings.ToLower(s)

// DateTime64 always has precision: DateTime64(3) or DateTime64(6, 'UTC')
if strings.HasPrefix(sLower, "datetime64(") {
return "DateTime64", nullable
}
// DateTime may have timezone or not: DateTime or DateTime('UTC')
if sLower == "datetime" || strings.HasPrefix(sLower, "datetime(") {
return "DateTime", nullable
}
return s, nullable
}

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