Examples with SymbolTable com.questdb.common.SymbolTable used on opensource projects

Example 1 with SymbolTable

use of com.questdb.common.SymbolTable in project questdb by bluestreak01.

the class SymRegexOperator method prepare.

@Override
public void prepare(StorageFacade facade) {
    super.prepare(facade);
    set.clear();
    SymbolTable tab = lhs.getSymbolTable();
    for (int i = 0, n = tab.size(); i < n; i++) {
        if (matcher.reset(tab.value(i)).find()) {
            set.add(i);
        }
    }
}

Example 2 with SymbolTable

use of com.questdb.common.SymbolTable in project questdb by bluestreak01.

the class KvIndexSymListHeadRowSource method prepare.

@Override
public void prepare(ReaderFactory factory, StorageFacade fa, CancellationHandler cancellationHandler) {
    if (filter != null) {
        filter.prepare(fa);
    }
    SymbolTable tab = fa.getSymbolTable(columnIndex);
    keys.clear();
    for (int i = 0, n = values.size(); i < n; i++) {
        int k = tab.getQuick(values.get(i));
        if (k > -1) {
            keys.add(k);
        }
    }
}

Example 3 with SymbolTable

use of com.questdb.common.SymbolTable in project questdb by bluestreak01.

the class AbstractOptimiserTest method assertSymbol.

public static void assertSymbol(String query, int columnIndex) throws ParserException {
    try (RecordSource src = compiler.compile(FACTORY_CONTAINER.getFactory(), query)) {
        RecordCursor cursor = src.prepareCursor(FACTORY_CONTAINER.getFactory());
        try {
            SymbolTable tab = cursor.getStorageFacade().getSymbolTable(columnIndex);
            while (cursor.hasNext()) {
                Record r = cursor.next();
                TestUtils.assertEquals(r.getSym(columnIndex), tab.value(r.getInt(columnIndex)));
            }
        } finally {
            cursor.releaseCursor();
        }
    }
}

Example 4 with SymbolTable

use of com.questdb.common.SymbolTable in project questdb by bluestreak01.

the class IntervalFrameCursorTest method assertIndexRowsMatchSymbol.

private static void assertIndexRowsMatchSymbol(DataFrameCursor cursor, TableReaderRecord record, int columnIndex, long expectedCount) {
    // SymbolTable is table at table scope, so it will be the same for every
    // data frame here. Get its instance outside of data frame loop.
    SymbolTable symbolTable = cursor.getSymbolTable(columnIndex);
    long rowCount = 0;
    while (cursor.hasNext()) {
        DataFrame frame = cursor.next();
        record.jumpTo(frame.getPartitionIndex(), frame.getRowLo());
        final long limit = frame.getRowHi();
        final long low = frame.getRowLo();
        // BitmapIndex is always at data frame scope, each table can have more than one.
        // we have to get BitmapIndexReader instance once for each frame.
        BitmapIndexReader indexReader = frame.getBitmapIndexReader(columnIndex);
        // because out Symbol column 0 is indexed, frame has to have index.
        Assert.assertNotNull(indexReader);
        int keyCount = indexReader.getKeyCount();
        for (int i = 0; i < keyCount; i++) {
            RowCursor ic = indexReader.getCursor(i, limit - 1);
            CharSequence expected = symbolTable.value(i - 1);
            while (ic.hasNext()) {
                long row = ic.next();
                if (row < low) {
                    break;
                }
                record.setRecordIndex(row);
                TestUtils.assertEquals(expected, record.getSym(columnIndex));
                rowCount++;
            }
        }
    }
    Assert.assertEquals(expectedCount, rowCount);
}

Example 5 with SymbolTable

use of com.questdb.common.SymbolTable in project questdb by bluestreak01.

the class AbstractTest method assertSymbol.

public void assertSymbol(String query) throws ParserException {
    try (RecordSource src = compiler.compile(getFactory(), query)) {
        RecordCursor cursor = src.prepareCursor(getFactory());
        try {
            SymbolTable tab = cursor.getStorageFacade().getSymbolTable(0);
            while (cursor.hasNext()) {
                Record r = cursor.next();
                TestUtils.assertEquals(r.getSym(0), tab.value(r.getInt(0)));
            }
        } finally {
            cursor.releaseCursor();
        }
    }
}