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sharp1FL's avatar
sharp1FL
Helper I
1 year ago
Solved

spark.sql() ArrayIndexOutOfBoundsException

I have the following Pyspark code that reads a table schema and formats a MERGE statement to perform an upsert.  This works for all of the  30 or so required tables except for 1. On one particular ta...
data engineering
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v-prasare's avatar
v-prasare
Community Support
1 year ago

Hi sharp1FL,

 

  • Print and Review Generated SQL
    Use print(merge_sql) to manually check for SQL syntax errors or invalid column references.

  • Fix Code Syntax Error & Wrap Column Names in Backticks
    Handle special characters: t. \{col}` = s.`{col}``

  • Avoid Complex/Nested Types: MERGE fails with arrays/structs—check using df_clean.printSchema()

  • Check for Duplicate Columns: Ensure column names are unique and clean.

  • Validate Runtime Compatibility

 

 

Thanks,

Prashanth Are

MS Fabric community support

 

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