Use the WHERE clause to specify one or more condition expressions separated by logical operators such as AND, OR.
The WHERE clause uses the following syntax:
See ADQL Expressions for a description of the condition expression syntax. Condition expressions use Comparison Operators.
To filter logs based on error or warning log level, use a query similar to the following:
SELECT * FROM logs WHERE sourceType='yourLogFile' AND (logLevel=’ERROR’ OR logLevel=’WARN’)