Examples with VariableWidthBlock io.trino.spi.block.VariableWidthBlock used on opensource projects

Example 6 with VariableWidthBlock

use of io.trino.spi.block.VariableWidthBlock in project trino by trinodb.

the class SliceDictionaryColumnReader method setDictionaryBlockData.

private void setDictionaryBlockData(byte[] dictionaryData, int[] dictionaryOffsets, int positionCount) {
    verify(positionCount > 0);
    // the engine currently uses identity equality to test if dictionaries are the same
    if (currentDictionaryData != dictionaryData) {
        boolean[] isNullVector = new boolean[positionCount];
        isNullVector[positionCount - 1] = true;
        dictionaryOffsets[positionCount] = dictionaryOffsets[positionCount - 1];
        dictionaryBlock = new VariableWidthBlock(positionCount, wrappedBuffer(dictionaryData), dictionaryOffsets, Optional.of(isNullVector));
        currentDictionaryData = dictionaryData;
        memoryContext.setBytes(getRetainedSizeInBytes());
    }
}