Unfortunately, this also does not work:
CalcFormula=exist(MyTestData where (MyDate >= field("MyDate"))));
the error messages are:
c:\Users\timotheusp\Documents\AL-Examples\FlowFields\tab50110.MyTableFlowFieldTest.al(33,56): error AL0104: Syntax error, '=' expected
c:\Users\timotheusp\Documents\AL-Examples\FlowFields\tab50110.MyTableFlowFieldTest.al(33,56): error AL0104: Syntax error, 'field' expected
c:\Users\timotheusp\Documents\AL-Examples\FlowFields\tab50110.MyTableFlowFieldTest.al(33,56): error AL0292: 'FIELD', 'CONST' or 'FILTER' keyword is expected.
c:\Users\timotheusp\Documents\AL-Examples\FlowFields\tab50110.MyTableFlowFieldTest.al(33,56): error AL0104: Syntax error, ')' expected
c:\Users\timotheusp\Documents\AL-Examples\FlowFields\tab50110.MyTableFlowFieldTest.al(33,59): error AL0104: Syntax error, ';' expected
c:\Users\timotheusp\Documents\AL-Examples\FlowFields\tab50110.MyTableFlowFieldTest.al(33,59): error AL0104: Syntax error, '}' expected
c:\Users\timotheusp\Documents\AL-Examples\FlowFields\tab50110.MyTableFlowFieldTest.al(33,65): error AL0114: Syntax error, integer literal expected
c:\Users\timotheusp\Documents\AL-Examples\FlowFields\tab50110.MyTableFlowFieldTest.al(33,65): error AL0104: Syntax error, ';' expected
c:\Users\timotheusp\Documents\AL-Examples\FlowFields\tab50110.MyTableFlowFieldTest.al(33,73): error AL0104: Syntax error, ';' expected
c:\Users\timotheusp\Documents\AL-Examples\FlowFields\tab50110.MyTableFlowFieldTest.al(33,73): error AL0107: Syntax error, identifier expected
c:\Users\timotheusp\Documents\AL-Examples\FlowFields\tab50110.MyTableFlowFieldTest.al(33,74): error AL0104: Syntax error, '{' expected
c:\Users\timotheusp\Documents\AL-Examples\FlowFields\tab50110.MyTableFlowFieldTest.al(33,74): error AL0104: Syntax error, '}' expected
c:\Users\timotheusp\Documents\AL-Examples\FlowFields\tab50110.MyTableFlowFieldTest.al(33,74): error AL0198: Expected one of the application object keywords (table, tableextension, page, pageextension, pagecustomization, profile, codeunit, report, xmlport, query, controladdin)
