AE - Retrieving a negative decimal value (edge case) as output parameter causes truncation

[lilgreenbird]

To reproduce:

1. Connect with ColumnEncryption = Enabled
2. Create an integer column with encryption (doesn't matter whether it's deterministic / randomized)
3. Insert -2147483647 into this table
4. Create a stored procedure to return this value as an OUTPUT parameter
5. Call this stored procedure to retrieve this as a string (PDO::PARAM_STR) with length = 2048
6. Error message "SQLSTATE[22003]: [Microsoft][ODBC Driver 17 for SQL Server]Numeric value out of range"

With AE, the integer column size is 10, and the buffer size required for "-2147483647" is 11.

This applies to negative decimals / numerics as well, using either SQLSRV or PDO_SQLSRV.
For example, if a column is of type decimal(4, 0), and the input is -9223.3720368548, the output param value is '-922'.

With SQLSRV, this might result in the error: "[Microsoft][ODBC Driver 17 for SQL Server]String data, right truncation"

See the new tests
sqlsrv_ae_output_param_sqltype_decimal_precision.phpt
sqlsrv_ae_output_param_sqltype_numeric.phpt
pdo_ae_output_param_integers.phpt
pdo_ae_output_param_decimals.phpt
for more examples.

[lilgreenbird]

also note sqlsrv_ae_output_param_sqltype_numeric.phpt test for decimal(18,5) is also wrong not just truncated (fetched data has an "8"):

048+ c_det: -9223372036854.8008
049+ c_rand: 9223372036854.80080
048- c_det: -9223372036854.80000
049- c_rand: 9223372036854.80000

[yitam]

Fixed in 5.2.1-preview.