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Quick reference: Snowpark Java APIs for SQL commands
This topic provides a quick reference of some of the Snowpark APIs that correspond to SQL commands. (Note that this is not a complete list of the APIs that correspond to SQL commands.)…
Java requirements for the JDBC Driver
The Snowflake JDBC driver requires Java LTS (Long - Term Support) versions 1.8 or higher. If the minimum required version of Java is not installed on the client machines where the JDBC driver is installed, you must install either Oracle Java…
Creating a Java UDF handler
When you write a Java UDF, you write Java code for Snowflake to execute as UDF logic. This Java code is the UDF’s handler. You deploy the UDF with CREATE FUNCTION, giving the UDF a name and specifying the Java method as the handler to…
Analyzing queries and troubleshooting with Snowpark Java
To inspect the evaluation plan of a DataFrame, call the explain method of the DataFrame. This prints the SQL statements used to evaluate the DataFrame. If there is only one SQL statement, the method also prints the logical plan for the…
JDBC driver throws javax.naming.CommunicationException: DNS error (Root exception: java.net.SocketTimeoutException)
ISSUE: The following exception occurs on macOS (aarch64) when using the JDBC driver’s diagnostic feature (i.e., ENABLE_DIAGNOSTICS=TRUE)1: javax.naming.CommunicationException: DNS error [Root exception is java.net.SocketTimeoutException];…
ERROR: "Exception in thread "main" java.io.IOException: ObjectIdentifier() -- data isn't an object ID (tag = 48)" while using Public/Private Key Pair Authentication with Snowflake JDBC Driver.
ERROR: "Exception in thread "main" java.io.IOException: ObjectIdentifier() - - data isn't an object ID (tag = 48)" while using Public/Private Key Pair Authentication with Snowflake JDBC Driver.
Error during ETL operations: JAVA PLUGIN_1762 [ERROR] java.lang.OutOfMemoryError: GC overhead limit exceeded
Error during ETL operations: JAVA PLUGIN_1762 [ERROR] java.
JDBC Driver Compatibility Issue With JDK 16 and Later: Exception creating result java.lang.ExceptionInInitializerError at net.snowflake.client.jdbc.internal.apache.arrow.memory.UnsafeAllocationManager
CAUSE: The failure is directly caused by one of the JDBC driver's dependencies, Apache Arrow, when attempting to use reflection in order to access a private member of the java.nio.Buffer class. This was allowed by Java previously, but not…
Tabular Java UDFs (UDTFs)
Your Java UDTF handler class processes rows received in the UDTF call and returns a tabular result. The received rows are partitioned, either implicitly by Snowflake or explicitly in the syntax of the function call.
JDBC driver with -Dhttp.nonProxyHosts=* set throws java.lang.StringIndexOutOfBoundsException: begin 1, end 0, length 1
ISSUE: When using the JDBC driver's diagnostics feature (i.e., ENABLE_DIAGNOSTICS=TRUE)1, if the -Dhttp.nonProxyHosts=* JVM argument is set, the following exception can occur on some Java versions: java.lang.RuntimeException: java.lang.St…