All local applications, including database executables, have default input buffer size of 4092 bytes. It effectively means that ESL application can not send more than 4092 bytes to a local in one block (for example an ESL application can not issue an SQL query longer than 4092 bytes). To overcome the situation locals input buffer size can be customized. When starting the local application for the database, you can add the -m parameter followed by the size of the Input Buffer in bytes required, for example:

start local Database "EslSQLSy.exe" "-m 8192"

The above example doubles the default buffer size to 8192 (i.e. 8K).