This column may contain values using all five storage classes.īehaves the same as a column with NUMERIC affinity with an exception in a CAST expression.īehaves like a column with NUMERIC affinity except that it forces integer values into floating point representationĪ column with affinity NONE does not prefer one storage class over another and no attempt is made to coerce data from one storage class into another. Practice described above was typical for SQLite-bash interaction for text files without 0 suitable to insert without hexdump program processing. This column stores all data using storage classes NULL, TEXT or BLOB. SQLite, affinity check SELECT i, b, typeof (b) FROM 'BLOB' The same data in DBeaver During SELECT in PostgreSQL there is invalid input for type 'bytea' SQLite 'blob', but affinity 'text' for value. The type affinity of a column is the recommended type for data stored in that column. SQLite supports the concept of "type affinity" on columns. In SQLite, Boolean values are stored as integers i.e. SQLite does not Provide a separate Boolean storage class. The value is a blob of data, stored exactly as it was input. Text string, stored using the database encoding (UTF-8, UTF-16BE or UTF-16LE). Signed integer, stored in 1, 2, 3, 4, 6, or 8 bytes depending on the magnitude of the valueĪ floating point value, 8-byte IEEE floating point number. Storage classes Every value which is stored in an SQLite database has one of the following storage classes. In SQLite, the data type of a value is associated with the value itself, not with its container.
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