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SQLCipherStatement.getColumnType: report SQLITE_DATA_* values (NULL was 0) - #94
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developernotes merged 2 commits intoSep 29, 2026
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… values SQLCipherStatement implements androidx.sqlite.SQLiteStatement, whose getColumnType contract is androidx.sqlite's SQLITE_DATA_* constants. A NULL column is currently reported as Cursor.FIELD_TYPE_NULL (0) rather than SQLITE_DATA_NULL (5), so room3-sqlite-wrapper's toCursor() throws IllegalStateException: Unknown column type: 0 on any NULL value.
…mnType getColumnType returned Cursor.getType() unchanged. Cursor.FIELD_TYPE_NULL is 0 while androidx.sqlite's SQLITE_DATA_NULL is 5, so every NULL column violated the SQLiteStatement contract. Each Cursor field type is now mapped explicitly, and an unknown value throws instead of passing through.
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Hi @ZoeyJones, Thanks for submitting this, we are including this in the 4.19.1 release. |
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Thank you for the trust and support. |
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SQLCipherStatementimplementsandroidx.sqlite.SQLiteStatement, sogetColumnType(int)should return androidx.sqlite'sSQLITE_DATA_*constants. It currently returnsandroid.database.Cursor.getType(index)unchanged. The two sets agree for INTEGER, FLOAT, TEXT and BLOB (1–4), but a NULL column reportsCursor.FIELD_TYPE_NULL(0) instead ofSQLITE_DATA_NULL(5). With Room 3'sroom3-sqlite-wrapper, this makesgetSupportWrapper().query(...)throwIllegalStateException: Unknown column type: 0on the first NULL value.Change
getColumnTypenow maps eachCursor.FIELD_TYPE_*to itsSQLite.SQLITE_DATA_*value explicitly, and throws on an unknown value instead of passing it through.SQLCipherConnectionTests:getColumnTypereportsSQLITE_DATA_*for NULL, INTEGER, FLOAT, TEXT and BLOB.SupportAPIRoomTest: agetSupportWrapper().query(...)over a NULL column succeeds.Verification
master(bc71616) the tests fail:expected:<5> but was:<0>, andUnknown column type: 0.net.zetetic.database.sqlcipher.driverpackage passes: 37/37 on an API 36 arm64 emulator.Contributor agreement
Individual Contributor Agreement signed via DocuSign and completed by Zetetic on 2026-09-27, as requested in #93.
Fixes #93