Reference documentation and code samples for the Google Cloud Spanner v1 API enum TypeAnnotationCode.
TypeAnnotationCode is used as a part of [Type][google.spanner.v1.Type] to
disambiguate SQL types that should be used for a given Cloud Spanner value.
Disambiguation is needed because the same Cloud Spanner type can be mapped to
different SQL types depending on SQL dialect. TypeAnnotationCode doesn't
affect the way value is serialized.
PostgreSQL compatible JSONB type. This annotation needs to be applied to
[Type][google.spanner.v1.Type] instances having [JSON][google.spanner.v1.TypeCode.JSON]
type code to specify that values of this type should be treated as
PostgreSQL JSONB values. Currently this annotation is always needed for
[JSON][google.spanner.v1.TypeCode.JSON] when a client interacts with PostgreSQL-enabled
Spanner databases.
PgNumeric
PostgreSQL compatible NUMERIC type. This annotation needs to be applied to
[Type][google.spanner.v1.Type] instances having [NUMERIC][google.spanner.v1.TypeCode.NUMERIC]
type code to specify that values of this type should be treated as
PostgreSQL NUMERIC values. Currently this annotation is always needed for
[NUMERIC][google.spanner.v1.TypeCode.NUMERIC] when a client interacts with PostgreSQL-enabled
Spanner databases.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThe \u003ccode\u003eTypeAnnotationCode\u003c/code\u003e enum in the Google Cloud Spanner v1 API helps distinguish SQL types for Cloud Spanner values, especially for compatibility with different SQL dialects.\u003c/p\u003e\n"],["\u003cp\u003eThis enum is part of the \u003ccode\u003eType\u003c/code\u003e and is crucial for mapping Cloud Spanner types to SQL types based on the SQL dialect, without affecting how values are serialized.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ePgJsonb\u003c/code\u003e and \u003ccode\u003ePgNumeric\u003c/code\u003e fields specify that JSON and NUMERIC types should be treated as PostgreSQL JSONB and NUMERIC types, respectively, when interacting with PostgreSQL-enabled Spanner databases.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version available in the documentation is \u003ccode\u003e5.0.0-beta05\u003c/code\u003e, while the current page is displaying the details of version \u003ccode\u003e4.3.0\u003c/code\u003e, and other previous versions are listed.\u003c/p\u003e\n"]]],[],null,[]]
