Many SQL queries that "seem correct but produce strange results" in a gbase database trace back to implicit type conversion. Mismatched column types, sloppy literal formats, and mixed expressions don't throw errors — they quietly shift filtering, comparisons, joins, and aggregations away from what you intended.
The real danger is that these queries still run. You'll see rows that should match but don't, range filters that include or exclude the wrong boundaries, joins that return fewer rows than expected, or inconsistent match rates for the same business key across tables.
Common Symptoms
Comparing a numeric column with a string column yields unstable results.
Mixing date columns with string literals produces incorrect boundary matches.
