Source
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…
Python and Java support for serverless tasks
Serverless tasks can invoke the following object types and functions: user - defined functions (UDFs) and stored procedures written in Python, Java, and Scala. You can use Python or Java in your tasks in a few different ways.
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.
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.
Java UDF handler examples
This code returns the VARCHAR passed to it. This function is declared with the optional CALLED ON NULL INPUT clause to indicate that the function is called even if the value of the input is NULL.
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)…
Can JavaScript/Java API functionalities such as connection.createStatement be used inside UDF?
User cannot create or use statements such as connection.createStatement inside UDF (not even in JavaScript UDF). This is as per the design of the Snowflake server. Example: If we try to create a Connection and Statement object inside Java…
Enabling JDBC Driver Debugging in DBeaver
# "handlers" specifies a comma - separated list of log Handler # classes. These handlers will be installed during VM startup. # Note that these classes must be on the system classpath.
Error during ETL operations: JAVA PLUGIN_1762 [ERROR] java.lang.OutOfMemoryError: GC overhead limit exceeded
Error during ETL operations: JAVA PLUGIN_1762 [ERROR] java.
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.