diff options
Diffstat (limited to 'odb/relational/mssql/context.cxx')
| -rw-r--r-- | odb/relational/mssql/context.cxx | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/odb/relational/mssql/context.cxx b/odb/relational/mssql/context.cxx index c1fe9cc..efd8f2f 100644 --- a/odb/relational/mssql/context.cxx +++ b/odb/relational/mssql/context.cxx @@ -156,6 +156,52 @@ namespace relational return r; } + bool context:: + long_data (sql_type const& st) + { + bool r (false); + + // The same test as in common.cxx:traverse_simple(). + // + switch (st.type) + { + case sql_type::CHAR: + case sql_type::VARCHAR: + case sql_type::BINARY: + case sql_type::VARBINARY: + { + // Zero precision means max in VARCHAR(max). + // + if (st.prec == 0 || st.prec > options.mssql_short_limit ()) + r = true; + + break; + } + case sql_type::NCHAR: + case sql_type::NVARCHAR: + { + // Zero precision means max in NVARCHAR(max). Note that + // the precision is in 2-byte UCS-2 characters, not bytes. + // + if (st.prec == 0 || st.prec * 2 > options.mssql_short_limit ()) + r = true; + + break; + } + case sql_type::TEXT: + case sql_type::NTEXT: + case sql_type::IMAGE: + { + r = true; + break; + } + default: + break; + } + + return r; + } + // // SQL type parsing. // |