### Description

`FROM test | eval x1 = pow(emp_no, 1), x2 = pow(x1, 1), x3 = pow(x2, 2)`

or

`FROM test | eval x1 = substring(ip1, 3), x2 = substring(x1, 2), x3 = substring(x2, 2)`

or

`FROM test | eval x1 = concat(ip1, ip2), x2 = concat(x1, "--"), x3 = concat(x2, "**")`

will fail with 

```
                "type": "verification_exception",
                "reason": "Found 1 problem\nline 1:65: Unknown column [x2], did you mean [x1]?"
```

Spawned from https://github.com/elastic/elasticsearch/issues/99472
x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/analysis/AnalyzerTests.java
""", "mapping-multi-field-variation.json", "int", "u", "f");
    }
    public void testRenameUnsupportedSubFieldAndResolved() {
        assertProjectionWithMapping("""
            from test
            | rename some.string as ss, float as f
            | keep int, ss, f
            """, "mapping-multi-field-variation.json", "int", "ss", "f");
    }
    public void testRenameUnsupportedAndUnknown() {
        verifyUnsupported("""
            from test
            | rename text as t, doesnotexist as d
            """, "Found 1 problem\n" + "line 2:21: Unknown column [doesnotexist]");
    }
    public void testRenameResolvedAndUnknown() {
        verifyUnsupported("""
            from test
            | rename int as i, doesnotexist as d
            """, "Found 1 problem\n" + "line 2:20: Unknown column [doesnotexist]");
    }
    public void testUnsupportedFieldUsedExplicitly() {
        assertProjectionWithMapping("""
            from test
            | keep foo_type
            """, "mapping-multi-field-variation.json", "foo_type");
    }
    public void testUnsupportedFieldTypes() {
        assertProjectionWithMapping("""
            from test