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PostgreSQL Pattern Matching: ILIKE vs LIKE Explained

"When working with PostgreSQL, developers frequently encounter the need to filter records based on text patterns. PostgreSQL provides two primary operators for this task: LIKE and ILIKE. While they appear similar at first glance, understanding their internal mechanics, performance implications, and behavioral differences is crucial for writing robust and efficient database queries. Misusing these operators can lead to subtle bugs in data retrieval or unexpected performance degradation in large-scale production environments. The fundamental distinction lies in how these operators handle character casing. LIKE follows the standard SQL specificat..."

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